680005043789 has 16 divisors (see below), whose sum is σ = 703200905088. Its totient is φ = 657071237952.

The previous prime is 680005043719. The next prime is 680005043843. The reversal of 680005043789 is 987340500086.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680005043789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680005043719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5747144 + ... + 5864270.

It is an arithmetic number, because the mean of its divisors is an integer number (43950056568).

Almost surely, 2^680005043789 is an apocalyptic number.

It is an amenable number.

680005043789 is a deficient number, since it is larger than the sum of its proper divisors (23195861299).

680005043789 is a wasteful number, since it uses less digits than its factorization.

680005043789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118244.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 680005043789 in words is "six hundred eighty billion, five million, forty-three thousand, seven hundred eighty-nine".