18368367020 has 24 divisors (see below), whose sum is σ = 38955491568. Its totient is φ = 7274600000.

The previous prime is 18368367013. The next prime is 18368367047. The reversal of 18368367020 is 2076386381.

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, 4544606 + ... + 4548645.

It is an arithmetic number, because the mean of its divisors is an integer number (1623145482).

Almost surely, 2^18368367020 is an apocalyptic number.

18368367020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18368367020 is an abundant number, since it is smaller than the sum of its proper divisors (20587124548).

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

18368367020 is a wasteful number, since it uses less digits than its factorization.

18368367020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093361 (or 9093359 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 18368367020 in words is "eighteen billion, three hundred sixty-eight million, three hundred sixty-seven thousand, twenty".