680673480681 has 8 divisors (see below), whose sum is σ = 911634438400. Its totient is φ = 451747421712.

The previous prime is 680673480671. The next prime is 680673480791. The reversal of 680673480681 is 186084376086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680673480681 - 2⁹ = 680673480169 is a prime.

It is a super-2 number, since 2×680673480681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680673480631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508723906 + ... + 508725243.

It is an arithmetic number, because the mean of its divisors is an integer number (113954304800).

Almost surely, 2^680673480681 is an apocalyptic number.

It is an amenable number.

680673480681 is a deficient number, since it is larger than the sum of its proper divisors (230960957719).

680673480681 is a wasteful number, since it uses less digits than its factorization.

680673480681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017449375.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 680673480681 in words is "six hundred eighty billion, six hundred seventy-three million, four hundred eighty thousand, six hundred eighty-one".