18542604720 has 80 divisors (see below), whose sum is σ = 57516756192. Its totient is φ = 4941711360.

The previous prime is 18542604719. The next prime is 18542604733. The reversal of 18542604720 is 2740624581.

It is a tau number, because it is divible by the number of its divisors (80).

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, 390594 + ... + 435486.

Almost surely, 2^18542604720 is an apocalyptic number.

18542604720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18542604720 is an abundant number, since it is smaller than the sum of its proper divisors (38974151472).

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

18542604720 is a wasteful number, since it uses less digits than its factorization.

18542604720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46630 (or 46624 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 18542604720 in words is "eighteen billion, five hundred forty-two million, six hundred four thousand, seven hundred twenty".