38861779936 has 24 divisors (see below), whose sum is σ = 87439005360. Its totient is φ = 16655048448.

The previous prime is 38861779871. The next prime is 38861779981. The reversal of 38861779936 is 63997716883.

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 3 ways as a sum of consecutive naturals, for example, 86744821 + ... + 86745268.

It is an arithmetic number, because the mean of its divisors is an integer number (3643291890).

Almost surely, 2^38861779936 is an apocalyptic number.

It is an amenable number.

38861779936 is an abundant number, since it is smaller than the sum of its proper divisors (48577225424).

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

38861779936 is a wasteful number, since it uses less digits than its factorization.

38861779936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173490106 (or 173490098 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 67.

The spelling of 38861779936 in words is "thirty-eight billion, eight hundred sixty-one million, seven hundred seventy-nine thousand, nine hundred thirty-six".