18318823180 has 48 divisors (see below), whose sum is σ = 45383417856. Its totient is φ = 6078133440.

The previous prime is 18318823177. The next prime is 18318823199. The reversal of 18318823180 is 8132881381.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106124 + ... + 2114803.

It is an arithmetic number, because the mean of its divisors is an integer number (945487872).

Almost surely, 2^18318823180 is an apocalyptic number.

18318823180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18318823180 is an abundant number, since it is smaller than the sum of its proper divisors (27064594676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18318823180 is a wasteful number, since it uses less digits than its factorization.

18318823180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220974 (or 4220972 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 18318823180 in words is "eighteen billion, three hundred eighteen million, eight hundred twenty-three thousand, one hundred eighty".