38757117261 has 16 divisors (see below), whose sum is σ = 52511735808. Its totient is φ = 25421785200.

The previous prime is 38757117253. The next prime is 38757117271. The reversal of 38757117261 is 16271175783.

It is not a de Polignac number, because 38757117261 - 2³ = 38757117253 is a prime.

It is a super-2 number, since 2×38757117261² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38757117261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38757117211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83085 + ... + 290546.

It is an arithmetic number, because the mean of its divisors is an integer number (3281983488).

Almost surely, 2^38757117261 is an apocalyptic number.

It is an amenable number.

38757117261 is a deficient number, since it is larger than the sum of its proper divisors (13754618547).

38757117261 is a wasteful number, since it uses less digits than its factorization.

38757117261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374192.

The product of its digits is 493920, while the sum is 48.

The spelling of 38757117261 in words is "thirty-eight billion, seven hundred fifty-seven million, one hundred seventeen thousand, two hundred sixty-one".