12791509875 has 80 divisors (see below), whose sum is σ = 23889767616. Its totient is φ = 6809961600.

The previous prime is 12791509867. The next prime is 12791509877. The reversal of 12791509875 is 57890519721.

12791509875 is a `hidden beast` number, since 127 + 9 + 1 + 509 + 8 + 7 + 5 = 666.

It is not a de Polignac number, because 12791509875 - 2³ = 12791509867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12791509877) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 10458514 + ... + 10459736.

Almost surely, 2^12791509875 is an apocalyptic number.

12791509875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12791509875 is a deficient number, since it is larger than the sum of its proper divisors (11098257741).

12791509875 is a wasteful number, since it uses less digits than its factorization.

12791509875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 54.

The spelling of 12791509875 in words is "twelve billion, seven hundred ninety-one million, five hundred nine thousand, eight hundred seventy-five".