685624882700 has 72 divisors (see below), whose sum is σ = 1541777403264. Its totient is φ = 264370176000.

The previous prime is 685624882693. The next prime is 685624882721. The reversal of 685624882700 is 7288426586.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366410 + ... + 1226990.

Almost surely, 2^685624882700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685624882700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770888701632).

685624882700 is an abundant number, since it is smaller than the sum of its proper divisors (856152520564).

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

685624882700 is a wasteful number, since it uses less digits than its factorization.

685624882700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860883 (or 860876 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 685624882700 in words is "six hundred eighty-five billion, six hundred twenty-four million, eight hundred eighty-two thousand, seven hundred".