8644444463 has 2 divisors, whose sum is σ = 8644444464. Its totient is φ = 8644444462.

The previous prime is 8644444429. The next prime is 8644444483. The reversal of 8644444463 is 3644444468.

8644444463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8644444463 - 2¹⁰ = 8644443439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8644444483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4322222231 + 4322222232.

It is an arithmetic number, because the mean of its divisors is an integer number (4322222232).

Almost surely, 2^8644444463 is an apocalyptic number.

8644444463 is a deficient number, since it is larger than the sum of its proper divisors (1).

8644444463 is an equidigital number, since it uses as much as digits as its factorization.

8644444463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3538944, while the sum is 47.

The square root of 8644444463 is about 92975.5046396630. The cubic root of 8644444463 is about 2052.3229240699.

The spelling of 8644444463 in words is "eight billion, six hundred forty-four million, four hundred forty-four thousand, four hundred sixty-three".