38872690506 has 32 divisors (see below), whose sum is σ = 93028662720. Its totient is φ = 11960827632.

The previous prime is 38872690469. The next prime is 38872690513. The reversal of 38872690506 is 60509627883.

It is a happy number.

38872690506 is a `hidden beast` number, since 3 + 8 + 8 + 72 + 69 + 0 + 506 = 666.

It is a super-2 number, since 2×38872690506² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27686400 + ... + 27687803.

It is an arithmetic number, because the mean of its divisors is an integer number (2907145710).

Almost surely, 2^38872690506 is an apocalyptic number.

38872690506 is an abundant number, since it is smaller than the sum of its proper divisors (54155972214).

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

38872690506 is a wasteful number, since it uses less digits than its factorization.

38872690506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55374227 (or 55374221 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 38872690506 in words is "thirty-eight billion, eight hundred seventy-two million, six hundred ninety thousand, five hundred six".