680796889695 has 192 divisors, whose sum is σ = 1307773434240. Its totient is φ = 325597003776.

The previous prime is 680796889691. The next prime is 680796889697. The reversal of 680796889695 is 596988697086.

It is a happy number.

It is not a de Polignac number, because 680796889695 - 2² = 680796889691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680796889691) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1110598209 + ... + 1110598821.

It is an arithmetic number, because the mean of its divisors is an integer number (6811319970).

Almost surely, 2^680796889695 is an apocalyptic number.

680796889695 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

680796889695 is a deficient number, since it is larger than the sum of its proper divisors (626976544545).

680796889695 is a wasteful number, since it uses less digits than its factorization.

680796889695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 2821754880, while the sum is 81.

The spelling of 680796889695 in words is "six hundred eighty billion, seven hundred ninety-six million, eight hundred eighty-nine thousand, six hundred ninety-five".