8814956509 has 2 divisors, whose sum is σ = 8814956510. Its totient is φ = 8814956508.

The previous prime is 8814956489. The next prime is 8814956561. The reversal of 8814956509 is 9056594188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8628552100 + 186404409 = 92890^2 + 13653^2 .

It is a cyclic number.

It is not a de Polignac number, because 8814956509 - 2²³ = 8806567901 is a prime.

It is a super-2 number, since 2×8814956509² (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 8814956509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8814954509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4407478254 + 4407478255.

It is an arithmetic number, because the mean of its divisors is an integer number (4407478255).

Almost surely, 2^8814956509 is an apocalyptic number.

It is an amenable number.

8814956509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8814956509 is an equidigital number, since it uses as much as digits as its factorization.

8814956509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The square root of 8814956509 is about 93887.9998136077. Note that the first 3 decimals coincide. The cubic root of 8814956509 is about 2065.7292133512.

The spelling of 8814956509 in words is "eight billion, eight hundred fourteen million, nine hundred fifty-six thousand, five hundred nine".