685966490200 has 48 divisors (see below), whose sum is σ = 1595008214280. Its totient is φ = 274363176960.

The previous prime is 685966490149. The next prime is 685966490203. The reversal of 685966490200 is 2094669586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685966490203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2305144 + ... + 2585656.

Almost surely, 2^685966490200 is an apocalyptic number.

It is an amenable number.

685966490200 is an abundant number, since it is smaller than the sum of its proper divisors (909041724080).

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

685966490200 is a wasteful number, since it uses less digits than its factorization.

685966490200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292756 (or 292747 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 685966490200 in words is "six hundred eighty-five billion, nine hundred sixty-six million, four hundred ninety thousand, two hundred".