685335877318 has 8 divisors (see below), whose sum is σ = 1028146398120. Its totient is φ = 342620411280.

The previous prime is 685335877313. The next prime is 685335877321. The reversal of 685335877318 is 813778533586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 685335877318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685335877313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23745663 + ... + 23774506.

It is an arithmetic number, because the mean of its divisors is an integer number (128518299765).

Almost surely, 2^685335877318 is an apocalyptic number.

685335877318 is a deficient number, since it is larger than the sum of its proper divisors (342810520802).

685335877318 is a wasteful number, since it uses less digits than its factorization.

685335877318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47527382.

The product of its digits is 101606400, while the sum is 64.

The spelling of 685335877318 in words is "six hundred eighty-five billion, three hundred thirty-five million, eight hundred seventy-seven thousand, three hundred eighteen".