682809393651839 has 2 divisors, whose sum is σ = 682809393651840. Its totient is φ = 682809393651838.

The previous prime is 682809393651811. The next prime is 682809393651857. The reversal of 682809393651839 is 938156393908286.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682809393651839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682809393651239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341404696825919 + 341404696825920.

It is an arithmetic number, because the mean of its divisors is an integer number (341404696825920).

Almost surely, 2^{682809393651839} is an apocalyptic number.

682809393651839 is a deficient number, since it is larger than the sum of its proper divisors (1).

682809393651839 is an equidigital number, since it uses as much as digits as its factorization.

682809393651839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3627970560, while the sum is 80.

The spelling of 682809393651839 in words is "six hundred eighty-two trillion, eight hundred nine billion, three hundred ninety-three million, six hundred fifty-one thousand, eight hundred thirty-nine".