6931312625 has 16 divisors (see below), whose sum is σ = 8796902400. Its totient is φ = 5451060400.

The previous prime is 6931312621. The next prime is 6931312657. The reversal of 6931312625 is 5262131396.

It is not a de Polignac number, because 6931312625 - 2² = 6931312621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6931312621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462545 + ... + 477294.

It is an arithmetic number, because the mean of its divisors is an integer number (549806400).

Almost surely, 2^6931312625 is an apocalyptic number.

It is an amenable number.

6931312625 is a deficient number, since it is larger than the sum of its proper divisors (1865589775).

6931312625 is an equidigital number, since it uses as much as digits as its factorization.

6931312625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939913 (or 939903 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 6931312625 is about 83254.5051333560. The cubic root of 6931312625 is about 1906.6537376494.

The spelling of 6931312625 in words is "six billion, nine hundred thirty-one million, three hundred twelve thousand, six hundred twenty-five".