12691592139 has 16 divisors (see below), whose sum is σ = 16996544640. Its totient is φ = 8423884800.

The previous prime is 12691592117. The next prime is 12691592153. The reversal of 12691592139 is 93129519621.

It is not a de Polignac number, because 12691592139 - 2²⁴ = 12674814923 is a prime.

It is a super-2 number, since 2×12691592139² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12691592239) 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, 2510164 + ... + 2515214.

It is an arithmetic number, because the mean of its divisors is an integer number (1062284040).

Almost surely, 2^12691592139 is an apocalyptic number.

12691592139 is a deficient number, since it is larger than the sum of its proper divisors (4304952501).

12691592139 is a wasteful number, since it uses less digits than its factorization.

12691592139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570.

The product of its digits is 262440, while the sum is 48.

The spelling of 12691592139 in words is "twelve billion, six hundred ninety-one million, five hundred ninety-two thousand, one hundred thirty-nine".