13256388875 has 16 divisors (see below), whose sum is σ = 16707790944. Its totient is φ = 10500100000.

The previous prime is 13256388851. The next prime is 13256388881. The reversal of 13256388875 is 57888365231.

It is a de Polignac number, because none of the positive numbers 2^k-13256388875 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13256388875.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512381 + ... + 537630.

It is an arithmetic number, because the mean of its divisors is an integer number (1044236934).

Almost surely, 2^13256388875 is an apocalyptic number.

13256388875 is a deficient number, since it is larger than the sum of its proper divisors (3451402069).

13256388875 is a wasteful number, since it uses less digits than its factorization.

13256388875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050127 (or 1050117 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 56.

The spelling of 13256388875 in words is "thirteen billion, two hundred fifty-six million, three hundred eighty-eight thousand, eight hundred seventy-five".