38131597500 has 60 divisors (see below), whose sum is σ = 111181591752. Its totient is φ = 10168424000.

The previous prime is 38131597457. The next prime is 38131597519. The reversal of 38131597500 is 579513183.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2534607 + ... + 2549606.

Almost surely, 2^38131597500 is an apocalyptic number.

38131597500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38131597500 is an abundant number, since it is smaller than the sum of its proper divisors (73049994252).

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

38131597500 is a wasteful number, since it uses less digits than its factorization.

38131597500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084240 (or 5084223 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 38131597500 in words is "thirty-eight billion, one hundred thirty-one million, five hundred ninety-seven thousand, five hundred".