8387931306925 has 6 divisors (see below), whose sum is σ = 10401034820618. Its totient is φ = 6710345045520.

The previous prime is 8387931306919. The next prime is 8387931306941. The reversal of 8387931306925 is 5296031397838.

It can be written as a sum of positive squares in 3 ways, for example, as 20582493156 + 8367348813769 = 143466^2 + 2892637^2 .

It is not a de Polignac number, because 8387931306925 - 2³ = 8387931306917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167758626114 + ... + 167758626163.

Almost surely, 2^{8387931306925} is an apocalyptic number.

It is an amenable number.

8387931306925 is a deficient number, since it is larger than the sum of its proper divisors (2013103513693).

8387931306925 is a wasteful number, since it uses less digits than its factorization.

8387931306925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335517252287 (or 335517252282 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 8387931306925 in words is "eight trillion, three hundred eighty-seven billion, nine hundred thirty-one million, three hundred six thousand, nine hundred twenty-five".