12579423167 has 4 divisors (see below), whose sum is σ = 12594417360. Its totient is φ = 12564428976.

The previous prime is 12579423163. The next prime is 12579423179. The reversal of 12579423167 is 76132497521.

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 12579423167 - 2² = 12579423163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12579423163) 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, 7495838 + ... + 7497515.

It is an arithmetic number, because the mean of its divisors is an integer number (3148604340).

Almost surely, 2^12579423167 is an apocalyptic number.

12579423167 is a deficient number, since it is larger than the sum of its proper divisors (14994193).

12579423167 is an equidigital number, since it uses as much as digits as its factorization.

12579423167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14994192.

The product of its digits is 635040, while the sum is 47.

The spelling of 12579423167 in words is "twelve billion, five hundred seventy-nine million, four hundred twenty-three thousand, one hundred sixty-seven".