38668510992 has 40 divisors (see below), whose sum is σ = 100564099200. Its totient is φ = 12802994560.

The previous prime is 38668510949. The next prime is 38668510997. The reversal of 38668510992 is 29901586683.

It is not an unprimeable number, because it can be changed into a prime (38668510997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696184 + ... + 2710487.

It is an arithmetic number, because the mean of its divisors is an integer number (2514102480).

Almost surely, 2^38668510992 is an apocalyptic number.

It is an amenable number.

38668510992 is an abundant number, since it is smaller than the sum of its proper divisors (61895588208).

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

38668510992 is a wasteful number, since it uses less digits than its factorization.

38668510992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406831 (or 5406825 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 38668510992 in words is "thirty-eight billion, six hundred sixty-eight million, five hundred ten thousand, nine hundred ninety-two".