12857909767 has 16 divisors (see below), whose sum is σ = 13865178240. Its totient is φ = 11887099488.

The previous prime is 12857909759. The next prime is 12857909783. The reversal of 12857909767 is 76790975821.

It is a cyclic number.

It is not a de Polignac number, because 12857909767 - 2³ = 12857909759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857909747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89013 + ... + 183409.

It is an arithmetic number, because the mean of its divisors is an integer number (866573640).

Almost surely, 2^12857909767 is an apocalyptic number.

12857909767 is a deficient number, since it is larger than the sum of its proper divisors (1007268473).

12857909767 is a wasteful number, since it uses less digits than its factorization.

12857909767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94590.

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 12857909767 in words is "twelve billion, eight hundred fifty-seven million, nine hundred nine thousand, seven hundred sixty-seven".