680776247888 has 40 divisors (see below), whose sum is σ = 1439511142176. Its totient is φ = 309315209600.

The previous prime is 680776247867. The next prime is 680776247891. The reversal of 680776247888 is 888742677086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377831 + ... + 1226502.

Almost surely, 2^680776247888 is an apocalyptic number.

It is an amenable number.

680776247888 is an abundant number, since it is smaller than the sum of its proper divisors (758734894288).

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

680776247888 is a wasteful number, since it uses less digits than its factorization.

680776247888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606763 (or 1606757 counting only the distinct ones).

The product of its (nonzero) digits is 404619264, while the sum is 71.

The spelling of 680776247888 in words is "six hundred eighty billion, seven hundred seventy-six million, two hundred forty-seven thousand, eight hundred eighty-eight".