685631061325 has 24 divisors (see below), whose sum is σ = 997897634432. Its totient is φ = 457440333120.

The previous prime is 685631061263. The next prime is 685631061331. The reversal of 685631061325 is 523160136586.

It is not a de Polignac number, because 685631061325 - 2¹⁵ = 685631028557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52938009 + ... + 52950958.

Almost surely, 2^685631061325 is an apocalyptic number.

It is an amenable number.

685631061325 is a deficient number, since it is larger than the sum of its proper divisors (312266573107).

685631061325 is a wasteful number, since it uses less digits than its factorization.

685631061325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105889021 (or 105889016 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 685631061325 in words is "six hundred eighty-five billion, six hundred thirty-one million, sixty-one thousand, three hundred twenty-five".