680687203318 has 4 divisors (see below), whose sum is σ = 1021030804980. Its totient is φ = 340343601658.

The previous prime is 680687203303. The next prime is 680687203319. The reversal of 680687203318 is 813302786086.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680687203319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170171800828 + ... + 170171800831.

It is an arithmetic number, because the mean of its divisors is an integer number (255257701245).

Almost surely, 2^680687203318 is an apocalyptic number.

680687203318 is a deficient number, since it is larger than the sum of its proper divisors (340343601662).

680687203318 is a wasteful number, since it uses less digits than its factorization.

680687203318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340343601661.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 680687203318 in words is "six hundred eighty billion, six hundred eighty-seven million, two hundred three thousand, three hundred eighteen".