8091344969 has 2 divisors, whose sum is σ = 8091344970. Its totient is φ = 8091344968.

The previous prime is 8091344929. The next prime is 8091345049. The reversal of 8091344969 is 9694431908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5610010000 + 2481334969 = 74900^2 + 49813^2 .

It is a cyclic number.

It is not a de Polignac number, because 8091344969 - 2²⁸ = 7822909513 is a prime.

It is a super-2 number, since 2×8091344969² (a number of 21 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 8091344969.

It is not a weakly prime, because it can be changed into another prime (8091344909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4045672484 + 4045672485.

It is an arithmetic number, because the mean of its divisors is an integer number (4045672485).

Almost surely, 2^8091344969 is an apocalyptic number.

It is an amenable number.

8091344969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8091344969 is an equidigital number, since it uses as much as digits as its factorization.

8091344969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 8091344969 is about 89951.9036430025. The cubic root of 8091344969 is about 2007.5832912563.

The spelling of 8091344969 in words is "eight billion, ninety-one million, three hundred forty-four thousand, nine hundred sixty-nine".