18930364338 has 32 divisors (see below), whose sum is σ = 38177568000. Its totient is φ = 6257385680.

The previous prime is 18930364309. The next prime is 18930364339. The reversal of 18930364338 is 83346303981.

It is not an unprimeable number, because it can be changed into a prime (18930364339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170181 + ... + 1186247.

It is an arithmetic number, because the mean of its divisors is an integer number (1193049000).

Almost surely, 2^18930364338 is an apocalyptic number.

18930364338 is an abundant number, since it is smaller than the sum of its proper divisors (19247203662).

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

18930364338 is a wasteful number, since it uses less digits than its factorization.

18930364338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17702.

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 18930364338 in words is "eighteen billion, nine hundred thirty million, three hundred sixty-four thousand, three hundred thirty-eight".