680014067408 has 40 divisors (see below), whose sum is σ = 1418956967400. Its totient is φ = 313834627584.

The previous prime is 680014067389. The next prime is 680014067413. The reversal of 680014067408 is 804760410086.

It can be written as a sum of positive squares in 4 ways, for example, as 27162995344 + 652851072064 = 164812^2 + 807992^2 .

It is a congruent number.

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, 3957098 + ... + 4125366.

It is an arithmetic number, because the mean of its divisors is an integer number (35473924185).

Almost surely, 2^680014067408 is an apocalyptic number.

It is an amenable number.

680014067408 is an abundant number, since it is smaller than the sum of its proper divisors (738942899992).

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

680014067408 is a wasteful number, since it uses less digits than its factorization.

680014067408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187719 (or 187713 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 680014067408 in words is "six hundred eighty billion, fourteen million, sixty-seven thousand, four hundred eight".