Why cant my long int handle the number 2971215073 in C?

So I have the following code:

uint64_t only stores 32 bits

I am working on a C++ program and I notice that

C++ when to use long/int?

I was looking at integer limits in C++ and it looks like both int and long have the exact same maximums and minimums (32-bit limit, looks like), even when unsigned.