680796891684 has 384 divisors, whose sum is σ = 2238784128000. Its totient is φ = 177760396800.

The previous prime is 680796891629. The next prime is 680796891713. The reversal of 680796891684 is 486198697086.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48631774 + ... + 48645770.

It is an arithmetic number, because the mean of its divisors is an integer number (5830167000).

Almost surely, 2^680796891684 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 680796891684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119392064000).

680796891684 is an abundant number, since it is smaller than the sum of its proper divisors (1557987236316).

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

680796891684 is a wasteful number, since it uses less digits than its factorization.

680796891684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14145 (or 14123 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 680796891684 in words is "six hundred eighty billion, seven hundred ninety-six million, eight hundred ninety-one thousand, six hundred eighty-four".