12979894315 has 16 divisors (see below), whose sum is σ = 16601336640. Its totient is φ = 9708364800.

The previous prime is 12979894309. The next prime is 12979894337. The reversal of 12979894315 is 51349897921.

It is not a de Polignac number, because 12979894315 - 2¹⁷ = 12979763243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12979894315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492810 + ... + 518479.

It is an arithmetic number, because the mean of its divisors is an integer number (1037583540).

Almost surely, 2^12979894315 is an apocalyptic number.

12979894315 is a deficient number, since it is larger than the sum of its proper divisors (3621442325).

12979894315 is a wasteful number, since it uses less digits than its factorization.

12979894315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011462.

The product of its digits is 4898880, while the sum is 58.

The spelling of 12979894315 in words is "twelve billion, nine hundred seventy-nine million, eight hundred ninety-four thousand, three hundred fifteen".