38081977808 has 40 divisors (see below), whose sum is σ = 85391796480. Its totient is φ = 16114250880.

The previous prime is 38081977751. The next prime is 38081977847. The reversal of 38081977808 is 80877918083.

It is a congruent number.

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, 2143163 + ... + 2160858.

It is an arithmetic number, because the mean of its divisors is an integer number (2134794912).

Almost surely, 2^38081977808 is an apocalyptic number.

It is an amenable number.

38081977808 is an abundant number, since it is smaller than the sum of its proper divisors (47309818672).

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

38081977808 is a wasteful number, since it uses less digits than its factorization.

38081977808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304115 (or 4304109 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 59.

The spelling of 38081977808 in words is "thirty-eight billion, eighty-one million, nine hundred seventy-seven thousand, eight hundred eight".