8644417340459 has 2 divisors, whose sum is σ = 8644417340460. Its totient is φ = 8644417340458.

The previous prime is 8644417340381. The next prime is 8644417340567. The reversal of 8644417340459 is 9540437144468.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8644417340459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8644417340398 and 8644417340407.

It is not a weakly prime, because it can be changed into another prime (8644417348459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4322208670229 + 4322208670230.

It is an arithmetic number, because the mean of its divisors is an integer number (4322208670230).

Almost surely, 2^{8644417340459} is an apocalyptic number.

8644417340459 is a deficient number, since it is larger than the sum of its proper divisors (1).

8644417340459 is an equidigital number, since it uses as much as digits as its factorization.

8644417340459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 8644417340459 in words is "eight trillion, six hundred forty-four billion, four hundred seventeen million, three hundred forty thousand, four hundred fifty-nine".