12500138763875 has 32 divisors (see below), whose sum is σ = 17829068834304. Its totient is φ = 8571379740000.

The previous prime is 12500138763829. The next prime is 12500138763911. The reversal of 12500138763875 is 57836783100521.

It is not a de Polignac number, because 12500138763875 - 2³⁸ = 12225260856931 is a prime.

It is a super-2 number, since 2×12500138763875² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12500138763875.

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, 95704364 + ... + 95834886.

It is an arithmetic number, because the mean of its divisors is an integer number (557158401072).

Almost surely, 2^{12500138763875} is an apocalyptic number.

12500138763875 is a deficient number, since it is larger than the sum of its proper divisors (5328930070429).

12500138763875 is a wasteful number, since it uses less digits than its factorization.

12500138763875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239996 (or 239986 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 12500138763875 in words is "twelve trillion, five hundred billion, one hundred thirty-eight million, seven hundred sixty-three thousand, eight hundred seventy-five".