Big numbers in Godot is possible?!

Hi! Is it possible to use big numbers (Like BigDecimal library in Java) in Godot too?
In normal way, Godot and many other languages only support up to 15 digits, not more. So a number with more than 15 digits is not possible.
123456789012345 => is OK!
but not something like this:
12345678901234567890123456789012345678901234567890 = It never shows clearly at all!:joy: