12974891279 has 16 divisors (see below), whose sum is σ = 14896358400. Its totient is φ = 11070523584.

The previous prime is 12974891239. The next prime is 12974891297. The reversal of 12974891279 is 97219847921.

It is a cyclic number.

It is not a de Polignac number, because 12974891279 - 2⁸ = 12974891023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12974891219) 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, 1399742 + ... + 1408980.

It is an arithmetic number, because the mean of its divisors is an integer number (931022400).

Almost surely, 2^12974891279 is an apocalyptic number.

12974891279 is a deficient number, since it is larger than the sum of its proper divisors (1921467121).

12974891279 is an equidigital number, since it uses as much as digits as its factorization.

12974891279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142.

The product of its digits is 4572288, while the sum is 59.

The spelling of 12974891279 in words is "twelve billion, nine hundred seventy-four million, eight hundred ninety-one thousand, two hundred seventy-nine".