38872013261 has 16 divisors (see below), whose sum is σ = 40502087808. Its totient is φ = 37275940800.

The previous prime is 38872013249. The next prime is 38872013269. The reversal of 38872013261 is 16231027883.

It is a cyclic number.

It is not a de Polignac number, because 38872013261 - 2¹⁰ = 38872012237 is a prime.

It is a super-2 number, since 2×38872013261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38872013269) 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, 779951 + ... + 828291.

It is an arithmetic number, because the mean of its divisors is an integer number (2531380488).

Almost surely, 2^38872013261 is an apocalyptic number.

It is an amenable number.

38872013261 is a deficient number, since it is larger than the sum of its proper divisors (1630074547).

38872013261 is a wasteful number, since it uses less digits than its factorization.

38872013261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48692.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 38872013261 in words is "thirty-eight billion, eight hundred seventy-two million, thirteen thousand, two hundred sixty-one".