38018138772 has 48 divisors (see below), whose sum is σ = 89409640320. Its totient is φ = 12572982912.

The previous prime is 38018138713. The next prime is 38018138773. The reversal of 38018138772 is 27783181083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38018138773) 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, 826278 + ... + 871074.

It is an arithmetic number, because the mean of its divisors is an integer number (1862700840).

Almost surely, 2^38018138772 is an apocalyptic number.

It is an amenable number.

38018138772 is an abundant number, since it is smaller than the sum of its proper divisors (51391501548).

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

38018138772 is a wasteful number, since it uses less digits than its factorization.

38018138772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45360 (or 45358 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 38018138772 in words is "thirty-eight billion, eighteen million, one hundred thirty-eight thousand, seven hundred seventy-two".