680438976813 has 24 divisors (see below), whose sum is σ = 1042731955200. Its totient is φ = 426367053504.

The previous prime is 680438976799. The next prime is 680438976823. The reversal of 680438976813 is 318679834086.

It is not a de Polignac number, because 680438976813 - 2⁵ = 680438976781 is a prime.

It is a super-3 number, since 3×680438976813³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680438976823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15644328 + ... + 15687761.

It is an arithmetic number, because the mean of its divisors is an integer number (43447164800).

Almost surely, 2^680438976813 is an apocalyptic number.

It is an amenable number.

680438976813 is a deficient number, since it is larger than the sum of its proper divisors (362292978387).

680438976813 is a wasteful number, since it uses less digits than its factorization.

680438976813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31332241 (or 31332238 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 680438976813 in words is "six hundred eighty billion, four hundred thirty-eight million, nine hundred seventy-six thousand, eight hundred thirteen".