38686057944 has 32 divisors (see below), whose sum is σ = 97939392000. Its totient is φ = 12732119712.

The previous prime is 38686057897. The next prime is 38686057951. The reversal of 38686057944 is 44975068683.

It is a super-2 number, since 2×38686057944² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10200124 + ... + 10203915.

It is an arithmetic number, because the mean of its divisors is an integer number (3060606000).

Almost surely, 2^38686057944 is an apocalyptic number.

It is an amenable number.

38686057944 is an abundant number, since it is smaller than the sum of its proper divisors (59253334056).

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

38686057944 is a wasteful number, since it uses less digits than its factorization.

38686057944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404127 (or 20404123 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 38686057944 in words is "thirty-eight billion, six hundred eighty-six million, fifty-seven thousand, nine hundred forty-four".