8644417340407 has 16 divisors (see below), whose sum is σ = 9379650928032. Its totient is φ = 7934524922880.

The previous prime is 8644417340381. The next prime is 8644417340459. The reversal of 8644417340407 is 7040437144468.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8644417340407 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 (8644417340107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441228 + ... + 4181329.

It is an arithmetic number, because the mean of its divisors is an integer number (586228183002).

Almost surely, 2^{8644417340407} is an apocalyptic number.

8644417340407 is a deficient number, since it is larger than the sum of its proper divisors (735233587625).

8644417340407 is a wasteful number, since it uses less digits than its factorization.

8644417340407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625298.

The product of its (nonzero) digits is 7225344, while the sum is 52.

The spelling of 8644417340407 in words is "eight trillion, six hundred forty-four billion, four hundred seventeen million, three hundred forty thousand, four hundred seven".