8459612618509 has 64 divisors (see below), whose sum is σ = 10117101657600. Its totient is φ = 7018421431296.

The previous prime is 8459612618411. The next prime is 8459612618531. The reversal of 8459612618509 is 9058162169548.

It is not a de Polignac number, because 8459612618509 - 2²⁹ = 8459075747597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8459612618549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 959244102 + ... + 959252920.

It is an arithmetic number, because the mean of its divisors is an integer number (158079713400).

Almost surely, 2^{8459612618509} is an apocalyptic number.

It is an amenable number.

8459612618509 is a deficient number, since it is larger than the sum of its proper divisors (1657489039091).

8459612618509 is a wasteful number, since it uses less digits than its factorization.

8459612618509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559 (or 9525 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 64.

The spelling of 8459612618509 in words is "eight trillion, four hundred fifty-nine billion, six hundred twelve million, six hundred eighteen thousand, five hundred nine".