12869556939 has 10 divisors (see below), whose sum is σ = 19224893820. Its totient is φ = 8579704572.

The previous prime is 12869556899. The next prime is 12869556977. The reversal of 12869556939 is 93965596821.

12869556939 is a `hidden beast` number, since 1 + 2 + 8 + 69 + 5 + 569 + 3 + 9 = 666.

It is not a de Polignac number, because 12869556939 - 2⁸ = 12869556683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12869556239) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79441629 + ... + 79441790.

It is an arithmetic number, because the mean of its divisors is an integer number (1922489382).

Almost surely, 2^12869556939 is an apocalyptic number.

12869556939 is a deficient number, since it is larger than the sum of its proper divisors (6355336881).

12869556939 is an equidigital number, since it uses as much as digits as its factorization.

12869556939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158883431 (or 158883422 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 63.

The spelling of 12869556939 in words is "twelve billion, eight hundred sixty-nine million, five hundred fifty-six thousand, nine hundred thirty-nine".