808106216843659 has 2 divisors, whose sum is σ = 808106216843660. Its totient is φ = 808106216843658.

The previous prime is 808106216843591. The next prime is 808106216843669. The reversal of 808106216843659 is 956348612601808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808106216843659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808106216843594 and 808106216843603.

It is not a weakly prime, because it can be changed into another prime (808106216843669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404053108421829 + 404053108421830.

It is an arithmetic number, because the mean of its divisors is an integer number (404053108421830).

Almost surely, 2^{808106216843659} is an apocalyptic number.

808106216843659 is a deficient number, since it is larger than the sum of its proper divisors (1).

808106216843659 is an equidigital number, since it uses as much as digits as its factorization.

808106216843659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 808106216843659 in words is "eight hundred eight trillion, one hundred six billion, two hundred sixteen million, eight hundred forty-three thousand, six hundred fifty-nine".