8644417348459 has 2 divisors, whose sum is σ = 8644417348460. Its totient is φ = 8644417348458.

The previous prime is 8644417348429. The next prime is 8644417348517. The reversal of 8644417348459 is 9548437144468.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8644417348459 - 2⁹ = 8644417347947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8644417348394 and 8644417348403.

It is not a weakly prime, because it can be changed into another prime (8644417348429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4322208674229 + 4322208674230.

It is an arithmetic number, because the mean of its divisors is an integer number (4322208674230).

Almost surely, 2^{8644417348459} is an apocalyptic number.

8644417348459 is a deficient number, since it is larger than the sum of its proper divisors (1).

8644417348459 is an equidigital number, since it uses as much as digits as its factorization.

8644417348459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 371589120, while the sum is 67.

The spelling of 8644417348459 in words is "eight trillion, six hundred forty-four billion, four hundred seventeen million, three hundred forty-eight thousand, four hundred fifty-nine".