680809708799 has 12 divisors (see below), whose sum is σ = 748900754952. Its totient is φ = 618444232560.

The previous prime is 680809708771. The next prime is 680809708819. The reversal of 680809708799 is 997807908086.

It is not a de Polignac number, because 680809708799 - 2¹² = 680809704703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680809708199) 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, 1994312 + ... + 2310605.

It is an arithmetic number, because the mean of its divisors is an integer number (62408396246).

Almost surely, 2^680809708799 is an apocalyptic number.

680809708799 is a deficient number, since it is larger than the sum of its proper divisors (68091046153).

680809708799 is a wasteful number, since it uses less digits than its factorization.

680809708799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306246 (or 4306235 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 71.

The spelling of 680809708799 in words is "six hundred eighty billion, eight hundred nine million, seven hundred eight thousand, seven hundred ninety-nine".