685385963012 has 24 divisors (see below), whose sum is σ = 1206549267840. Its totient is φ = 340663344480.

The previous prime is 685385962997. The next prime is 685385963029. The reversal of 685385963012 is 210369583586.

685385963012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×685385963012² (a number of 24 digits) contains 22 as substring.

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, 240062 + ... + 1195157.

It is an arithmetic number, because the mean of its divisors is an integer number (50272886160).

Almost surely, 2^685385963012 is an apocalyptic number.

It is an amenable number.

685385963012 is a deficient number, since it is larger than the sum of its proper divisors (521163304828).

685385963012 is a wasteful number, since it uses less digits than its factorization.

685385963012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435931 (or 1435929 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 685385963012 in words is "six hundred eighty-five billion, three hundred eighty-five million, nine hundred sixty-three thousand, twelve".