38963818920 has 64 divisors (see below), whose sum is σ = 125883112320. Its totient is φ = 9591093504.

The previous prime is 38963818849. The next prime is 38963818969. The reversal of 38963818920 is 2981836983.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

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, 12486844 + ... + 12489963.

It is an arithmetic number, because the mean of its divisors is an integer number (1966923630).

Almost surely, 2^38963818920 is an apocalyptic number.

38963818920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38963818920 is an abundant number, since it is smaller than the sum of its proper divisors (86919293400).

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

38963818920 is a wasteful number, since it uses less digits than its factorization.

38963818920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24976834 (or 24976830 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 38963818920 in words is "thirty-eight billion, nine hundred sixty-three million, eight hundred eighteen thousand, nine hundred twenty".