680603028017 has 4 divisors (see below), whose sum is σ = 742476030576. Its totient is φ = 618730025460.

The previous prime is 680603027969. The next prime is 680603028043. The reversal of 680603028017 is 710820306086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680603028017 - 2²⁶ = 680535919153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680603078017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30936501263 + ... + 30936501284.

It is an arithmetic number, because the mean of its divisors is an integer number (185619007644).

Almost surely, 2^680603028017 is an apocalyptic number.

It is an amenable number.

680603028017 is a deficient number, since it is larger than the sum of its proper divisors (61873002559).

680603028017 is a wasteful number, since it uses less digits than its factorization.

680603028017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61873002558.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 680603028017 in words is "six hundred eighty billion, six hundred three million, twenty-eight thousand, seventeen".