How to handle larger numbers?

Hello,

If you have a number, like so:
76561197960265729

how would you be able to perform arithmetic with it in NSIS?

When I output a number that large, it just displays the first 7 or 8 numbers. I think because nsis only uses integer type.

is there a way to add support for larger numbers?

Thanks!

System::Int64Op

Thanks :_)