38896561944 has 96 divisors (see below), whose sum is σ = 107855953920. Its totient is φ = 12656806848.

The previous prime is 38896561883. The next prime is 38896562053. The reversal of 38896561944 is 44916569883.

38896561944 is a `hidden beast` number, since 3 + 8 + 8 + 9 + 6 + 5 + 619 + 4 + 4 = 666.

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 23 ways as a sum of consecutive naturals, for example, 9803049 + ... + 9807015.

It is an arithmetic number, because the mean of its divisors is an integer number (1123499520).

Almost surely, 2^38896561944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38896561944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53927976960).

38896561944 is an abundant number, since it is smaller than the sum of its proper divisors (68959391976).

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

38896561944 is a wasteful number, since it uses less digits than its factorization.

38896561944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189 (or 7182 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 38896561944 in words is "thirty-eight billion, eight hundred ninety-six million, five hundred sixty-one thousand, nine hundred forty-four".