685957759586 has 32 divisors (see below), whose sum is σ = 1133735581440. Its totient is φ = 308672208000.

The previous prime is 685957759517. The next prime is 685957759589.

685957759586 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 685957759586.

It is not an unprimeable number, because it can be changed into a prime (685957759589) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23625350 + ... + 23654366.

It is an arithmetic number, because the mean of its divisors is an integer number (35429236920).

Almost surely, 2^685957759586 is an apocalyptic number.

685957759586 is a deficient number, since it is larger than the sum of its proper divisors (447777821854).

685957759586 is a wasteful number, since it uses less digits than its factorization.

685957759586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39770.

The product of its digits is 5715360000, while the sum is 80.

The spelling of 685957759586 in words is "six hundred eighty-five billion, nine hundred fifty-seven million, seven hundred fifty-nine thousand, five hundred eighty-six".