680178688 has 88 divisors (see below), whose sum is σ = 1604585984. Its totient is φ = 282009600.

The previous prime is 680178683. The next prime is 680178757. The reversal of 680178688 is 886871086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680178683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220678 + ... + 223738.

Almost surely, 2^680178688 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 680178688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802292992).

680178688 is an abundant number, since it is smaller than the sum of its proper divisors (924407296).

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

680178688 is a wasteful number, since it uses less digits than its factorization.

680178688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 680178688 is about 26080.2355817581. The cubic root of 680178688 is about 879.4429532447.

The spelling of 680178688 in words is "six hundred eighty million, one hundred seventy-eight thousand, six hundred eighty-eight".