680208785572 has 6 divisors (see below), whose sum is σ = 1190365374758. Its totient is φ = 340104392784.

The previous prime is 680208785569. The next prime is 680208785611. The reversal of 680208785572 is 275587802086.

680208785572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 523562227776 + 156646557796 = 723576^2 + 395786^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85026098193 + ... + 85026098200.

Almost surely, 2^680208785572 is an apocalyptic number.

It is an amenable number.

680208785572 is a deficient number, since it is larger than the sum of its proper divisors (510156589186).

680208785572 is a wasteful number, since it uses less digits than its factorization.

680208785572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170052196397 (or 170052196395 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 58.

The spelling of 680208785572 in words is "six hundred eighty billion, two hundred eight million, seven hundred eighty-five thousand, five hundred seventy-two".