680717681135 has 16 divisors (see below), whose sum is σ = 830857305600. Its totient is φ = 535309362720.

The previous prime is 680717681089. The next prime is 680717681143. The reversal of 680717681135 is 531186717086.

It is not a de Polignac number, because 680717681135 - 2¹⁸ = 680717418991 is a prime.

It is a super-2 number, since 2×680717681135² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4038731 + ... + 4203900.

It is an arithmetic number, because the mean of its divisors is an integer number (51928581600).

Almost surely, 2^680717681135 is an apocalyptic number.

680717681135 is a deficient number, since it is larger than the sum of its proper divisors (150139624465).

680717681135 is a wasteful number, since it uses less digits than its factorization.

680717681135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242918.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 680717681135 in words is "six hundred eighty billion, seven hundred seventeen million, six hundred eighty-one thousand, one hundred thirty-five".