680529125440 has 56 divisors (see below), whose sum is σ = 1624786021440. Its totient is φ = 271493365248.

The previous prime is 680529125417. The next prime is 680529125489. The reversal of 680529125440 is 44521925086.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 2684332 + ... + 2926891.

Almost surely, 2^680529125440 is an apocalyptic number.

It is an amenable number.

680529125440 is an abundant number, since it is smaller than the sum of its proper divisors (944256896000).

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

680529125440 is a wasteful number, since it uses less digits than its factorization.

680529125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611619 (or 5611609 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 680529125440 in words is "six hundred eighty billion, five hundred twenty-nine million, one hundred twenty-five thousand, four hundred forty".