12613688579 has 4 divisors (see below), whose sum is σ = 12704434680. Its totient is φ = 12522942480.

The previous prime is 12613688551. The next prime is 12613688587. The reversal of 12613688579 is 97588631621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12613688579 - 2²⁰ = 12612640003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613688539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45372842 + ... + 45373119.

It is an arithmetic number, because the mean of its divisors is an integer number (3176108670).

Almost surely, 2^12613688579 is an apocalyptic number.

12613688579 is a deficient number, since it is larger than the sum of its proper divisors (90746101).

12613688579 is an equidigital number, since it uses as much as digits as its factorization.

12613688579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90746100.

The product of its digits is 4354560, while the sum is 56.

The spelling of 12613688579 in words is "twelve billion, six hundred thirteen million, six hundred eighty-eight thousand, five hundred seventy-nine".