38687073892 has 24 divisors (see below), whose sum is σ = 68536310976. Its totient is φ = 19105395168.

The previous prime is 38687073889. The next prime is 38687073913. The reversal of 38687073892 is 29837078683.

It is a self number, because there is not a number n which added to its sum of digits gives 38687073892.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438513 + ... + 1465159.

It is an arithmetic number, because the mean of its divisors is an integer number (2855679624).

Almost surely, 2^38687073892 is an apocalyptic number.

It is an amenable number.

38687073892 is a deficient number, since it is larger than the sum of its proper divisors (29849237084).

38687073892 is a wasteful number, since it uses less digits than its factorization.

38687073892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31107 (or 31105 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 38687073892 in words is "thirty-eight billion, six hundred eighty-seven million, seventy-three thousand, eight hundred ninety-two".