808106216843291 has 2 divisors, whose sum is σ = 808106216843292. Its totient is φ = 808106216843290.

The previous prime is 808106216843131. The next prime is 808106216843351. The reversal of 808106216843291 is 192348612601808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808106216843291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 808106216843291.

It is not a weakly prime, because it can be changed into another prime (808106216843591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404053108421645 + 404053108421646.

It is an arithmetic number, because the mean of its divisors is an integer number (404053108421646).

Almost surely, 2^{808106216843291} is an apocalyptic number.

808106216843291 is a deficient number, since it is larger than the sum of its proper divisors (1).

808106216843291 is an equidigital number, since it uses as much as digits as its factorization.

808106216843291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 808106216843291 in words is "eight hundred eight trillion, one hundred six billion, two hundred sixteen million, eight hundred forty-three thousand, two hundred ninety-one".