680806800740 has 96 divisors (see below), whose sum is σ = 1571727725568. Its totient is φ = 245657664000.

The previous prime is 680806800721. The next prime is 680806800743. The reversal of 680806800740 is 47008608086.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (680806800743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18338477 + ... + 18375563.

It is an arithmetic number, because the mean of its divisors is an integer number (16372163808).

Almost surely, 2^680806800740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680806800740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785863862784).

680806800740 is an abundant number, since it is smaller than the sum of its proper divisors (890920924828).

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

680806800740 is a wasteful number, since it uses less digits than its factorization.

680806800740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37749 (or 37747 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 680806800740 in words is "six hundred eighty billion, eight hundred six million, eight hundred thousand, seven hundred forty".