680791074671 has 16 divisors (see below), whose sum is σ = 707350918560. Its totient is φ = 654438113280.

The previous prime is 680791074653. The next prime is 680791074673. The reversal of 680791074671 is 176470197086.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680791074671 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 (680791074673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41597336 + ... + 41613698.

It is an arithmetic number, because the mean of its divisors is an integer number (44209432410).

Almost surely, 2^680791074671 is an apocalyptic number.

680791074671 is a deficient number, since it is larger than the sum of its proper divisors (26559843889).

680791074671 is a wasteful number, since it uses less digits than its factorization.

680791074671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22586.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 680791074671 in words is "six hundred eighty billion, seven hundred ninety-one million, seventy-four thousand, six hundred seventy-one".