685368591796 has 24 divisors (see below), whose sum is σ = 1371030776640. Its totient is φ = 293666483712.

The previous prime is 685368591767. The next prime is 685368591877. The reversal of 685368591796 is 697195863586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2488186 + ... + 2749873.

It is an arithmetic number, because the mean of its divisors is an integer number (57126282360).

Almost surely, 2^685368591796 is an apocalyptic number.

It is an amenable number.

685368591796 is an abundant number, since it is smaller than the sum of its proper divisors (685662184844).

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

685368591796 is a wasteful number, since it uses less digits than its factorization.

685368591796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242743 (or 5242741 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 73.

The spelling of 685368591796 in words is "six hundred eighty-five billion, three hundred sixty-eight million, five hundred ninety-one thousand, seven hundred ninety-six".