38681761536 has 108 divisors (see below), whose sum is σ = 121668139320. Its totient is φ = 11721738240.

The previous prime is 38681761501. The next prime is 38681761567. The reversal of 38681761536 is 63516718683.

38681761536 is a `hidden beast` number, since 3 + 8 + 6 + 8 + 17 + 615 + 3 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737791 + ... + 788478.

Almost surely, 2^38681761536 is an apocalyptic number.

38681761536 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38681761536 is an abundant number, since it is smaller than the sum of its proper divisors (82986377784).

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

38681761536 is a wasteful number, since it uses less digits than its factorization.

38681761536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526302 (or 1526285 counting only the distinct ones).

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

The spelling of 38681761536 in words is "thirty-eight billion, six hundred eighty-one million, seven hundred sixty-one thousand, five hundred thirty-six".