680369495688 has 96 divisors (see below), whose sum is σ = 1880158962240. Its totient is φ = 222187904640.

The previous prime is 680369495651. The next prime is 680369495723. The reversal of 680369495688 is 886594963086.

680369495688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2507845 + ... + 2765867.

It is an arithmetic number, because the mean of its divisors is an integer number (19584989190).

Almost surely, 2^680369495688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680369495688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940079481120).

680369495688 is an abundant number, since it is smaller than the sum of its proper divisors (1199789466552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680369495688 is a wasteful number, since it uses less digits than its factorization.

680369495688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258779 (or 258772 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 72.

The spelling of 680369495688 in words is "six hundred eighty billion, three hundred sixty-nine million, four hundred ninety-five thousand, six hundred eighty-eight".