18318823179 has 32 divisors (see below), whose sum is σ = 25930727424. Its totient is φ = 11479717920.

The previous prime is 18318823177. The next prime is 18318823199. The reversal of 18318823179 is 97132881381.

It is not a de Polignac number, because 18318823179 - 2¹ = 18318823177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18318823177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085484 + ... + 1102230.

It is an arithmetic number, because the mean of its divisors is an integer number (810335232).

Almost surely, 2^18318823179 is an apocalyptic number.

18318823179 is a deficient number, since it is larger than the sum of its proper divisors (7611904245).

18318823179 is a wasteful number, since it uses less digits than its factorization.

18318823179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047.

The product of its digits is 580608, while the sum is 51.

The spelling of 18318823179 in words is "eighteen billion, three hundred eighteen million, eight hundred twenty-three thousand, one hundred seventy-nine".