I confirmed that #.type() is in the index. It just doesn't work. I wonder if this is a due to a different CPU or math processor in my tablet. Maybe today I will install SPL on my laptop and try the same thing.
I can calculate and display large numbers. I made this code:
large number like "154762456789105789" is just an INTEGER number. The #.type function reports internal object type.
In SPL biggest INTEGER number is 2^63-1. Next number 2^63 is already a BIG number.
Most probably your tablet has some incompatibility with Microsoft math libraries, currently I have no better idea what happens.