680807480068 has 12 divisors (see below), whose sum is σ = 1223613444172. Its totient is φ = 331203638880.

The previous prime is 680807479993. The next prime is 680807480077. The reversal of 680807480068 is 860084708086.

It can be written as a sum of positive squares in 2 ways, for example, as 650380957444 + 30426522624 = 806462^2 + 174432^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2300025123 + ... + 2300025418.

Almost surely, 2^680807480068 is an apocalyptic number.

It is an amenable number.

680807480068 is a deficient number, since it is larger than the sum of its proper divisors (542805964104).

680807480068 is a wasteful number, since it uses less digits than its factorization.

680807480068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600050582 (or 4600050580 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 680807480068 in words is "six hundred eighty billion, eight hundred seven million, four hundred eighty thousand, sixty-eight".