13979267220951 has 16 divisors (see below), whose sum is σ = 20710136198400. Its totient is φ = 9319461672024.

The previous prime is 13979267220937. The next prime is 13979267220979. The reversal of 13979267220951 is 15902276297931.

13979267220951 is a `hidden beast` number, since 1 + 39 + 79 + 267 + 220 + 9 + 51 = 666.

It is not a de Polignac number, because 13979267220951 - 2²⁷ = 13979133003223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13979267220901) 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, 4166670 + ... + 6731988.

It is an arithmetic number, because the mean of its divisors is an integer number (1294383512400).

Almost surely, 2^{13979267220951} is an apocalyptic number.

13979267220951 is a deficient number, since it is larger than the sum of its proper divisors (6730868977449).

13979267220951 is a wasteful number, since it uses less digits than its factorization.

13979267220951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767155 (or 2767149 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 13979267220951 in words is "thirteen trillion, nine hundred seventy-nine billion, two hundred sixty-seven million, two hundred twenty thousand, nine hundred fifty-one".