8069999009 has 2 divisors, whose sum is σ = 8069999010. Its totient is φ = 8069999008.

The previous prime is 8069998987. The next prime is 8069999017. The reversal of 8069999009 is 9009999608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7612039009 + 457960000 = 87247^2 + 21400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8069999009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8069999039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034999504 + 4034999505.

It is an arithmetic number, because the mean of its divisors is an integer number (4034999505).

Almost surely, 2^8069999009 is an apocalyptic number.

It is an amenable number.

8069999009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8069999009 is an equidigital number, since it uses as much as digits as its factorization.

8069999009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2834352, while the sum is 59.

The square root of 8069999009 is about 89833.1732101232. The cubic root of 8069999009 is about 2005.8163195664.

The spelling of 8069999009 in words is "eight billion, sixty-nine million, nine hundred ninety-nine thousand, nine".