18340534576 has 60 divisors (see below), whose sum is σ = 44516129952. Its totient is φ = 7255592064.

The previous prime is 18340534559. The next prime is 18340534591. The reversal of 18340534576 is 67543504381.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 889560 + ... + 909943.

Almost surely, 2^18340534576 is an apocalyptic number.

18340534576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18340534576 is an abundant number, since it is smaller than the sum of its proper divisors (26175595376).

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

18340534576 is a wasteful number, since it uses less digits than its factorization.

18340534576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799538 (or 1799525 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 18340534576 in words is "eighteen billion, three hundred forty million, five hundred thirty-four thousand, five hundred seventy-six".