8368226509 has 2 divisors, whose sum is σ = 8368226510. Its totient is φ = 8368226508.

The previous prime is 8368226491. The next prime is 8368226539. The reversal of 8368226509 is 9056228638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8368224484 + 2025 = 91478^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 8368226509 - 2⁷ = 8368226381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8368226539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184113254 + 4184113255.

It is an arithmetic number, because the mean of its divisors is an integer number (4184113255).

Almost surely, 2^8368226509 is an apocalyptic number.

It is an amenable number.

8368226509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8368226509 is an equidigital number, since it uses as much as digits as its factorization.

8368226509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 8368226509 is about 91478.0110682343. The cubic root of 8368226509 is about 2030.2264227694.

The spelling of 8368226509 in words is "eight billion, three hundred sixty-eight million, two hundred twenty-six thousand, five hundred nine".