8182911509 has 2 divisors, whose sum is σ = 8182911510. Its totient is φ = 8182911508.

The previous prime is 8182911479. The next prime is 8182911511. The reversal of 8182911509 is 9051192818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5545780900 + 2637130609 = 74470^2 + 51353^2 .

It is a cyclic number.

It is not a de Polignac number, because 8182911509 - 2¹² = 8182907413 is a prime.

Together with 8182911511, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8182911509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8182911589) 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, 4091455754 + 4091455755.

It is an arithmetic number, because the mean of its divisors is an integer number (4091455755).

Almost surely, 2^8182911509 is an apocalyptic number.

It is an amenable number.

8182911509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8182911509 is an equidigital number, since it uses as much as digits as its factorization.

8182911509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 44.

The square root of 8182911509 is about 90459.4467648349. The cubic root of 8182911509 is about 2015.1279104069.

The spelling of 8182911509 in words is "eight billion, one hundred eighty-two million, nine hundred eleven thousand, five hundred nine".