12657087279 has 24 divisors (see below), whose sum is σ = 18462920112. Its totient is φ = 8355173760.

The previous prime is 12657087271. The next prime is 12657087293. The reversal of 12657087279 is 97278075621.

It is a happy number.

It is not a de Polignac number, because 12657087279 - 2³ = 12657087271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12657087271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362884 + ... + 396230.

It is an arithmetic number, because the mean of its divisors is an integer number (769288338).

Almost surely, 2^12657087279 is an apocalyptic number.

12657087279 is a deficient number, since it is larger than the sum of its proper divisors (5805832833).

12657087279 is a wasteful number, since it uses less digits than its factorization.

12657087279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33767 (or 33764 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 12657087279 in words is "twelve billion, six hundred fifty-seven million, eighty-seven thousand, two hundred seventy-nine".