38571746864 has 20 divisors (see below), whose sum is σ = 85408868304. Its totient is φ = 16530748608.

The previous prime is 38571746861. The next prime is 38571746881. The reversal of 38571746864 is 46864717583.

It is a happy number.

It is a super-2 number, since 2×38571746864² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38571746861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172195187 + ... + 172195410.

Almost surely, 2^38571746864 is an apocalyptic number.

It is an amenable number.

38571746864 is an abundant number, since it is smaller than the sum of its proper divisors (46837121440).

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

38571746864 is a wasteful number, since it uses less digits than its factorization.

38571746864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344390612 (or 344390606 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 59.

The spelling of 38571746864 in words is "thirty-eight billion, five hundred seventy-one million, seven hundred forty-six thousand, eight hundred sixty-four".