680874691677 has 32 divisors (see below), whose sum is σ = 944159784960. Its totient is φ = 436095031680.

The previous prime is 680874691669. The next prime is 680874691699. The reversal of 680874691677 is 776196478086.

It is not a de Polignac number, because 680874691677 - 2³ = 680874691669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680874691877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29515974 + ... + 29539032.

It is an arithmetic number, because the mean of its divisors is an integer number (29504993280).

Almost surely, 2^680874691677 is an apocalyptic number.

680874691677 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

680874691677 is a deficient number, since it is larger than the sum of its proper divisors (263285093283).

680874691677 is a wasteful number, since it uses less digits than its factorization.

680874691677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26753.

The product of its (nonzero) digits is 170698752, while the sum is 69.

The spelling of 680874691677 in words is "six hundred eighty billion, eight hundred seventy-four million, six hundred ninety-one thousand, six hundred seventy-seven".