Repro Steps:

1) Create a Page
2) Create a Data Structure
3) Within the Data Structure created in Step 2), create a Property named "Number" of Type: 'Number' and of Maximum Value Generator value of one billion (1000000000)

Observe how the Max Value in the Value Generator section is converted to "1E+09"
Expected Results: Numerical input matches what is typed in.

4) Create a Data Set from the Data Structure created in Step 2), and apply it to the Page created in Step 1)
5) Drag in a Text Block to the Page created in Step 1).
6) Bind the Text Property to the "Number" Data Property
7) In the Data Set created in Step 4), input a simply "123" value into the 'Number' field.

Observe how the number correctly displays "123" within the TextBlock.

8) In the 'Number' Data field from Step 7), type "1000000000"

Observe how the numerical value is converted to "1E+09"

9) In the 'Number' Data field from Step 7, type "1234567890"

Observe how the numerical value is converted to "1.234568E+09"
Observe how this Scientific Value represents "1,234,568,000" instead of "1,234,567,890"

If this Data item represented a player's in-game credits account for example, their account value would be imprecise by 110 credits.

Expected Results: Numerical Data conversion to Scientific Values doesn't occur unless specified by the author in a String Format.
Expected Results: Numbers are not changed by Studio from what the user has input into the field.