680626833828 has 96 divisors (see below), whose sum is σ = 1684878827520. Its totient is φ = 213386279040.

The previous prime is 680626833779. The next prime is 680626833871. The reversal of 680626833828 is 828338626086.

It is a super-3 number, since 3×680626833828³ (a number of 36 digits) contains 333 as substring.

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, 95069313 + ... + 95076471.

It is an arithmetic number, because the mean of its divisors is an integer number (17550821120).

Almost surely, 2^680626833828 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 680626833828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842439413760).

680626833828 is an abundant number, since it is smaller than the sum of its proper divisors (1004251993692).

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

680626833828 is a wasteful number, since it uses less digits than its factorization.

680626833828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12897 (or 12895 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 60.

The spelling of 680626833828 in words is "six hundred eighty billion, six hundred twenty-six million, eight hundred thirty-three thousand, eight hundred twenty-eight".