686365675859 has 2 divisors, whose sum is σ = 686365675860. Its totient is φ = 686365675858.

The previous prime is 686365675847. The next prime is 686365675867. The reversal of 686365675859 is 958576563686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 686365675859 - 2¹² = 686365671763 is a prime.

It is not a weakly prime, because it can be changed into another prime (686365675819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343182837929 + 343182837930.

It is an arithmetic number, because the mean of its divisors is an integer number (343182837930).

Almost surely, 2^686365675859 is an apocalyptic number.

686365675859 is a deficient number, since it is larger than the sum of its proper divisors (1).

686365675859 is an equidigital number, since it uses as much as digits as its factorization.

686365675859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552000, while the sum is 74.

The spelling of 686365675859 in words is "six hundred eighty-six billion, three hundred sixty-five million, six hundred seventy-five thousand, eight hundred fifty-nine".