38721134864808 has 96 divisors (see below), whose sum is σ = 118225687339200. Its totient is φ = 11733677223840.

The previous prime is 38721134864779. The next prime is 38721134864857. The reversal of 38721134864808 is 80846843112783.

It is a happy number.

38721134864808 is a `hidden beast` number, since 3 + 8 + 72 + 1 + 1 + 3 + 4 + 86 + 480 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740736316 + ... + 740788587.

It is an arithmetic number, because the mean of its divisors is an integer number (1231517576450).

Almost surely, 2^{38721134864808} is an apocalyptic number.

It is an amenable number.

38721134864808 is an abundant number, since it is smaller than the sum of its proper divisors (79504552474392).

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

38721134864808 is a wasteful number, since it uses less digits than its factorization.

38721134864808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481524940 (or 1481524919 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 63.

The spelling of 38721134864808 in words is "thirty-eight trillion, seven hundred twenty-one billion, one hundred thirty-four million, eight hundred sixty-four thousand, eight hundred eight".