12912916265250 has 64 divisors (see below), whose sum is σ = 32465899395072. Its totient is φ = 3418309680000.

The previous prime is 12912916265243. The next prime is 12912916265269. The reversal of 12912916265250 is 5256261921921.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12912916265193 and 12912916265202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62733826 + ... + 62939325.

It is an arithmetic number, because the mean of its divisors is an integer number (507279678048).

Almost surely, 2^{12912916265250} is an apocalyptic number.

12912916265250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12912916265250 is an abundant number, since it is smaller than the sum of its proper divisors (19552983129822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12912916265250 is a wasteful number, since it uses less digits than its factorization.

12912916265250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125673308 (or 125673298 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 12912916265250 in words is "twelve trillion, nine hundred twelve billion, nine hundred sixteen million, two hundred sixty-five thousand, two hundred fifty".