680626833804 has 48 divisors (see below), whose sum is σ = 1766525322240. Its totient is φ = 226626538320.

The previous prime is 680626833779. The next prime is 680626833871. The reversal of 680626833804 is 408338626086.

It is a happy number.

680626833804 is a `hidden beast` number, since 6 + 8 + 0 + 626 + 8 + 3 + 3 + 8 + 0 + 4 = 666.

It is a super-2 number, since 2×680626833804² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3360504 + ... + 3557279.

It is an arithmetic number, because the mean of its divisors is an integer number (36802610880).

Almost surely, 2^680626833804 is an apocalyptic number.

It is an amenable number.

680626833804 is an abundant number, since it is smaller than the sum of its proper divisors (1085898488436).

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

680626833804 is a wasteful number, since it uses less digits than its factorization.

680626833804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918707 (or 6918699 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 680626833804 in words is "six hundred eighty billion, six hundred twenty-six million, eight hundred thirty-three thousand, eight hundred four".