12865585928 has 32 divisors (see below), whose sum is σ = 26006218560. Its totient is φ = 5931647040.

The previous prime is 12865585871. The next prime is 12865585987. The reversal of 12865585928 is 82958556821.

12865585928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33173 + ... + 163803.

It is an arithmetic number, because the mean of its divisors is an integer number (812694330).

Almost surely, 2^12865585928 is an apocalyptic number.

It is an amenable number.

12865585928 is an abundant number, since it is smaller than the sum of its proper divisors (13140632632).

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

12865585928 is a wasteful number, since it uses less digits than its factorization.

12865585928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131597 (or 131593 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 59.

The spelling of 12865585928 in words is "twelve billion, eight hundred sixty-five million, five hundred eighty-five thousand, nine hundred twenty-eight".