38507272056 has 96 divisors (see below), whose sum is σ = 114004350720. Its totient is φ = 11644987200.

The previous prime is 38507272039. The next prime is 38507272057. The reversal of 38507272056 is 65027270583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38507272057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339361 + ... + 438383.

It is an arithmetic number, because the mean of its divisors is an integer number (1187545320).

Almost surely, 2^38507272056 is an apocalyptic number.

38507272056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38507272056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57002175360).

38507272056 is an abundant number, since it is smaller than the sum of its proper divisors (75497078664).

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

38507272056 is a wasteful number, since it uses less digits than its factorization.

38507272056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99537 (or 99530 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 38507272056 in words is "thirty-eight billion, five hundred seven million, two hundred seventy-two thousand, fifty-six".