38131906625 has 16 divisors (see below), whose sum is σ = 47615587968. Its totient is φ = 30488238000.

The previous prime is 38131906601. The next prime is 38131906679. The reversal of 38131906625 is 52660913183.

It is not a de Polignac number, because 38131906625 - 2¹⁴ = 38131890241 is a prime.

It is a Duffinian number.

It is a Curzon 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, 137330 + ... + 308420.

It is an arithmetic number, because the mean of its divisors is an integer number (2975974248).

Almost surely, 2^38131906625 is an apocalyptic number.

It is an amenable number.

38131906625 is a deficient number, since it is larger than the sum of its proper divisors (9483681343).

38131906625 is a wasteful number, since it uses less digits than its factorization.

38131906625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172889 (or 172879 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 38131906625 in words is "thirty-eight billion, one hundred thirty-one million, nine hundred six thousand, six hundred twenty-five".