806334884569 has 2 divisors, whose sum is σ = 806334884570. Its totient is φ = 806334884568.

The previous prime is 806334884561. The next prime is 806334884669. The reversal of 806334884569 is 965488433608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504933884569 + 301401000000 = 710587^2 + 549000^2 .

It is a cyclic number.

It is not a de Polignac number, because 806334884569 - 2³ = 806334884561 is a prime.

It is a super-2 number, since 2×806334884569² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 806334884569.

It is not a weakly prime, because it can be changed into another prime (806334884561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403167442284 + 403167442285.

It is an arithmetic number, because the mean of its divisors is an integer number (403167442285).

Almost surely, 2^806334884569 is an apocalyptic number.

It is an amenable number.

806334884569 is a deficient number, since it is larger than the sum of its proper divisors (1).

806334884569 is an equidigital number, since it uses as much as digits as its factorization.

806334884569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119439360, while the sum is 64.

The spelling of 806334884569 in words is "eight hundred six billion, three hundred thirty-four million, eight hundred eighty-four thousand, five hundred sixty-nine".