808564326149 has 2 divisors, whose sum is σ = 808564326150. Its totient is φ = 808564326148.

The previous prime is 808564326139. The next prime is 808564326247. The reversal of 808564326149 is 941623465808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 477490674049 + 331073652100 = 691007^2 + 575390^2 .

It is a cyclic number.

It is not a de Polignac number, because 808564326149 - 2¹⁶ = 808564260613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808564326094 and 808564326103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808564326139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404282163074 + 404282163075.

It is an arithmetic number, because the mean of its divisors is an integer number (404282163075).

Almost surely, 2^808564326149 is an apocalyptic number.

It is an amenable number.

808564326149 is a deficient number, since it is larger than the sum of its proper divisors (1).

808564326149 is an equidigital number, since it uses as much as digits as its factorization.

808564326149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 808564326149 in words is "eight hundred eight billion, five hundred sixty-four million, three hundred twenty-six thousand, one hundred forty-nine".