680628971280 has 160 divisors (see below), whose sum is σ = 2118854384640. Its totient is φ = 180736427520.

The previous prime is 680628971251. The next prime is 680628971291. The reversal of 680628971280 is 82179826086.

680628971280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 680628971280.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73000699 + ... + 73010021.

It is an arithmetic number, because the mean of its divisors is an integer number (13242839904).

Almost surely, 2^680628971280 is an apocalyptic number.

680628971280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680628971280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059427192320).

680628971280 is an abundant number, since it is smaller than the sum of its proper divisors (1438225413360).

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

680628971280 is a wasteful number, since it uses less digits than its factorization.

680628971280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10589 (or 10583 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 680628971280 in words is "six hundred eighty billion, six hundred twenty-eight million, nine hundred seventy-one thousand, two hundred eighty".