18379478231588 has 48 divisors (see below), whose sum is σ = 33720052529856. Its totient is φ = 8755738467840.

The previous prime is 18379478231567. The next prime is 18379478231617. The reversal of 18379478231588 is 88513287497381.

It is a super-2 number, since 2×18379478231588² (a number of 27 digits) contains 22 as substring.

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, 46012895 + ... + 46410617.

It is an arithmetic number, because the mean of its divisors is an integer number (702501094372).

Almost surely, 2^{18379478231588} is an apocalyptic number.

It is an amenable number.

18379478231588 is a deficient number, since it is larger than the sum of its proper divisors (15340574298268).

18379478231588 is a wasteful number, since it uses less digits than its factorization.

18379478231588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404364 (or 404362 counting only the distinct ones).

The product of its digits is 650280960, while the sum is 74.

The spelling of 18379478231588 in words is "eighteen trillion, three hundred seventy-nine billion, four hundred seventy-eight million, two hundred thirty-one thousand, five hundred eighty-eight".