685113737958 has 24 divisors (see below), whose sum is σ = 1598598722448. Its totient is φ = 210804226992.

The previous prime is 685113737947. The next prime is 685113737983. The reversal of 685113737958 is 859737311586.

685113737958 is a `hidden beast` number, since 6 + 8 + 511 + 37 + 37 + 9 + 58 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 685113737895 and 685113737904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1463918010 + ... + 1463918477.

It is an arithmetic number, because the mean of its divisors is an integer number (66608280102).

Almost surely, 2^685113737958 is an apocalyptic number.

685113737958 is an abundant number, since it is smaller than the sum of its proper divisors (913484984490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685113737958 is a wasteful number, since it uses less digits than its factorization.

685113737958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927836508 (or 2927836505 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 685113737958 in words is "six hundred eighty-five billion, one hundred thirteen million, seven hundred thirty-seven thousand, nine hundred fifty-eight".