18768000020 has 48 divisors (see below), whose sum is σ = 49138040448. Its totient is φ = 5849765760.

The previous prime is 18768000019. The next prime is 18768000047. The reversal of 18768000020 is 2000086781.

It is a congruent number.

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, 6091967 + ... + 6095046.

It is an arithmetic number, because the mean of its divisors is an integer number (1023709176).

Almost surely, 2^18768000020 is an apocalyptic number.

18768000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18768000020 is an abundant number, since it is smaller than the sum of its proper divisors (30370040428).

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

18768000020 is a wasteful number, since it uses less digits than its factorization.

18768000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187040 (or 12187038 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 18768000020 in words is "eighteen billion, seven hundred sixty-eight million, twenty", and thus it is an aban number.