39537393968 has 20 divisors (see below), whose sum is σ = 80635475160. Its totient is φ = 18728239104.

The previous prime is 39537393953. The next prime is 39537393971. The reversal of 39537393968 is 86939373593.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65028305 + ... + 65028912.

It is an arithmetic number, because the mean of its divisors is an integer number (4031773758).

Almost surely, 2^39537393968 is an apocalyptic number.

39537393968 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39537393968 is an abundant number, since it is smaller than the sum of its proper divisors (41098081192).

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

39537393968 is a wasteful number, since it uses less digits than its factorization.

39537393968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130057244 (or 130057238 counting only the distinct ones).

The product of its digits is 99202320, while the sum is 65.

The spelling of 39537393968 in words is "thirty-nine billion, five hundred thirty-seven million, three hundred ninety-three thousand, nine hundred sixty-eight".