38901121756 has 18 divisors (see below), whose sum is σ = 79191569688. Its totient is φ = 16671909240.

The previous prime is 38901121751. The next prime is 38901121757. The reversal of 38901121756 is 65712110983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38901121751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99237360 + ... + 99237751.

Almost surely, 2^38901121756 is an apocalyptic number.

It is an amenable number.

38901121756 is an abundant number, since it is smaller than the sum of its proper divisors (40290447932).

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

38901121756 is a wasteful number, since it uses less digits than its factorization.

38901121756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198475129 (or 198475120 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 38901121756 in words is "thirty-eight billion, nine hundred one million, one hundred twenty-one thousand, seven hundred fifty-six".