765316680 has 32 divisors (see below), whose sum is σ = 2295950400. Its totient is φ = 204084416.

The previous prime is 765316663. The next prime is 765316723. The reversal of 765316680 is 86613567.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3188700 + ... + 3188939.

It is an arithmetic number, because the mean of its divisors is an integer number (71748450).

Almost surely, 2^765316680 is an apocalyptic number.

It is an amenable number.

765316680 is an abundant number, since it is smaller than the sum of its proper divisors (1530633720).

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

765316680 is a wasteful number, since it uses less digits than its factorization.

765316680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377653 (or 6377649 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 765316680 is about 27664.3575743230. The cubic root of 765316680 is about 914.7036096969.

The spelling of 765316680 in words is "seven hundred sixty-five million, three hundred sixteen thousand, six hundred eighty".