38961916577944 has 24 divisors (see below), whose sum is σ = 74792024178660. Its totient is φ = 19027912740144.

The previous prime is 38961916577939. The next prime is 38961916577999. The reversal of 38961916577944 is 44977561916983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1316978062 + ... + 1317007645.

Almost surely, 2^{38961916577944} is an apocalyptic number.

It is an amenable number.

38961916577944 is a deficient number, since it is larger than the sum of its proper divisors (35830107600716).

38961916577944 is a wasteful number, since it uses less digits than its factorization.

38961916577944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633985799 (or 2633985752 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 79.

The spelling of 38961916577944 in words is "thirty-eight trillion, nine hundred sixty-one billion, nine hundred sixteen million, five hundred seventy-seven thousand, nine hundred forty-four".