38897385812 has 12 divisors (see below), whose sum is σ = 68560141440. Its totient is φ = 19308773976.

The previous prime is 38897385809. The next prime is 38897385829. The reversal of 38897385812 is 21858379883.

It is a congruent number.

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, 34979108 + ... + 34980219.

It is an arithmetic number, because the mean of its divisors is an integer number (5713345120).

Almost surely, 2^38897385812 is an apocalyptic number.

It is an amenable number.

38897385812 is a deficient number, since it is larger than the sum of its proper divisors (29662755628).

38897385812 is a wasteful number, since it uses less digits than its factorization.

38897385812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69959470 (or 69959468 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 62.

The spelling of 38897385812 in words is "thirty-eight billion, eight hundred ninety-seven million, three hundred eighty-five thousand, eight hundred twelve".