12979631344 has 10 divisors (see below), whose sum is σ = 25148035760. Its totient is φ = 6489815664.

The previous prime is 12979631333. The next prime is 12979631351. The reversal of 12979631344 is 44313697921.

It is a super-2 number, since 2×12979631344² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405613464 + ... + 405613495.

It is an arithmetic number, because the mean of its divisors is an integer number (2514803576).

Almost surely, 2^12979631344 is an apocalyptic number.

It is an amenable number.

12979631344 is a deficient number, since it is larger than the sum of its proper divisors (12168404416).

12979631344 is an equidigital number, since it uses as much as digits as its factorization.

12979631344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811226967 (or 811226961 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The spelling of 12979631344 in words is "twelve billion, nine hundred seventy-nine million, six hundred thirty-one thousand, three hundred forty-four".