38994165856 has 24 divisors (see below), whose sum is σ = 78642199944. Its totient is φ = 19021543680.

The previous prime is 38994165829. The next prime is 38994165883. The reversal of 38994165856 is 65856149983.

It is an interprime number because it is at equal distance from previous prime (38994165829) and next prime (38994165883).

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 3 ways as a sum of consecutive naturals, for example, 14859270 + ... + 14861893.

It is an arithmetic number, because the mean of its divisors is an integer number (3276758331).

Almost surely, 2^38994165856 is an apocalyptic number.

It is an amenable number.

38994165856 is an abundant number, since it is smaller than the sum of its proper divisors (39648034088).

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

38994165856 is a wasteful number, since it uses less digits than its factorization.

38994165856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29721214 (or 29721206 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 64.

The spelling of 38994165856 in words is "thirty-eight billion, nine hundred ninety-four million, one hundred sixty-five thousand, eight hundred fifty-six".