38990680808 has 16 divisors (see below), whose sum is σ = 75083406180. Its totient is φ = 18968439168.

The previous prime is 38990680801. The next prime is 38990680811. The reversal of 38990680808 is 80808609983.

It can be written as a sum of positive squares in 2 ways, for example, as 34595256004 + 4395424804 = 185998^2 + 66298^2 .

It is not an unprimeable number, because it can be changed into a prime (38990680801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65862341 + ... + 65862932.

Almost surely, 2^38990680808 is an apocalyptic number.

It is an amenable number.

38990680808 is a deficient number, since it is larger than the sum of its proper divisors (36092725372).

38990680808 is a wasteful number, since it uses less digits than its factorization.

38990680808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131725316 (or 131725312 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 38990680808 in words is "thirty-eight billion, nine hundred ninety million, six hundred eighty thousand, eight hundred eight".