680262376728 has 128 divisors (see below), whose sum is σ = 1894813689600. Its totient is φ = 201775411200.

The previous prime is 680262376727. The next prime is 680262376733. The reversal of 680262376728 is 827673262086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680262376727) 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, 3535488 + ... + 3722928.

It is an arithmetic number, because the mean of its divisors is an integer number (14803231950).

Almost surely, 2^680262376728 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 680262376728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947406844800).

680262376728 is an abundant number, since it is smaller than the sum of its proper divisors (1214551312872).

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

680262376728 is a wasteful number, since it uses less digits than its factorization.

680262376728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187753 (or 187749 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 680262376728 in words is "six hundred eighty billion, two hundred sixty-two million, three hundred seventy-six thousand, seven hundred twenty-eight".