38137569985 has 16 divisors (see below), whose sum is σ = 46399905216. Its totient is φ = 30088166848.

The previous prime is 38137569919. The next prime is 38137570027. The reversal of 38137569985 is 58996573183.

It is a cyclic number.

It is not a de Polignac number, because 38137569985 - 2¹⁹ = 38137045697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148662 + ... + 313648.

It is an arithmetic number, because the mean of its divisors is an integer number (2899994076).

Almost surely, 2^38137569985 is an apocalyptic number.

It is an amenable number.

38137569985 is a deficient number, since it is larger than the sum of its proper divisors (8262335231).

38137569985 is a wasteful number, since it uses less digits than its factorization.

38137569985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165632.

The product of its digits is 48988800, while the sum is 64.

The spelling of 38137569985 in words is "thirty-eight billion, one hundred thirty-seven million, five hundred sixty-nine thousand, nine hundred eighty-five".