391137274413 has 16 divisors (see below), whose sum is σ = 579473045760. Its totient is φ = 260753495328.

The previous prime is 391137274399. The next prime is 391137274421. The reversal of 391137274413 is 314472731193.

391137274413 is a `hidden beast` number, since 3 + 91 + 13 + 72 + 74 + 413 = 666.

It is not a de Polignac number, because 391137274413 - 2⁴ = 391137274397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391137274433) 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, 2084281 + ... + 2264177.

It is an arithmetic number, because the mean of its divisors is an integer number (36217065360).

Almost surely, 2^391137274413 is an apocalyptic number.

It is an amenable number.

391137274413 is a deficient number, since it is larger than the sum of its proper divisors (188335771347).

391137274413 is a wasteful number, since it uses less digits than its factorization.

391137274413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260433 (or 260427 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The spelling of 391137274413 in words is "three hundred ninety-one billion, one hundred thirty-seven million, two hundred seventy-four thousand, four hundred thirteen".