8044573309 has 2 divisors, whose sum is σ = 8044573310. Its totient is φ = 8044573308.

The previous prime is 8044573307. The next prime is 8044573331. The reversal of 8044573309 is 9033754408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8018665209 + 25908100 = 89547^2 + 5090^2 .

It is a cyclic number.

It is not a de Polignac number, because 8044573309 - 2¹ = 8044573307 is a prime.

Together with 8044573307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8044573307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022286654 + 4022286655.

It is an arithmetic number, because the mean of its divisors is an integer number (4022286655).

Almost surely, 2^8044573309 is an apocalyptic number.

It is an amenable number.

8044573309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8044573309 is an equidigital number, since it uses as much as digits as its factorization.

8044573309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 8044573309 is about 89691.5453596380. The cubic root of 8044573309 is about 2003.7075651500.

The spelling of 8044573309 in words is "eight billion, forty-four million, five hundred seventy-three thousand, three hundred nine".