18558992364 has 24 divisors (see below), whose sum is σ = 47241071808. Its totient is φ = 5623937040.

The previous prime is 18558992357. The next prime is 18558992383. The reversal of 18558992364 is 46329985581.

It is a junction number, because it is equal to n+sod(n) for n = 18558992298 and 18558992307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70299082 + ... + 70299345.

It is an arithmetic number, because the mean of its divisors is an integer number (1968377992).

Almost surely, 2^18558992364 is an apocalyptic number.

It is an amenable number.

18558992364 is an abundant number, since it is smaller than the sum of its proper divisors (28682079444).

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

18558992364 is a wasteful number, since it uses less digits than its factorization.

18558992364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140598445 (or 140598443 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 60.

The spelling of 18558992364 in words is "eighteen billion, five hundred fifty-eight million, nine hundred ninety-two thousand, three hundred sixty-four".