685924017425 has 48 divisors (see below), whose sum is σ = 928859745600. Its totient is φ = 500482080000.

The previous prime is 685924017419. The next prime is 685924017433. The reversal of 685924017425 is 524710429586.

It is not a de Polignac number, because 685924017425 - 2³⁰ = 684850275601 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4708175 + ... + 4851675.

It is an arithmetic number, because the mean of its divisors is an integer number (19351244700).

Almost surely, 2^685924017425 is an apocalyptic number.

It is an amenable number.

685924017425 is a deficient number, since it is larger than the sum of its proper divisors (242935728175).

685924017425 is a wasteful number, since it uses less digits than its factorization.

685924017425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143906 (or 143901 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 685924017425 in words is "six hundred eighty-five billion, nine hundred twenty-four million, seventeen thousand, four hundred twenty-five".