8444221846533 has 64 divisors (see below), whose sum is σ = 14454151280640. Its totient is φ = 4815286444800.

The previous prime is 8444221846531. The next prime is 8444221846537. The reversal of 8444221846533 is 3356481224448.

It is a happy number.

8444221846533 is a `hidden beast` number, since 8 + 4 + 4 + 4 + 2 + 21 + 84 + 6 + 533 = 666.

It is not a de Polignac number, because 8444221846533 - 2¹ = 8444221846531 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8444221846533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444221846531) 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, 17488866 + ... + 17965212.

It is an arithmetic number, because the mean of its divisors is an integer number (225846113760).

Almost surely, 2^{8444221846533} is an apocalyptic number.

It is an amenable number.

8444221846533 is a deficient number, since it is larger than the sum of its proper divisors (6009929434107).

8444221846533 is a wasteful number, since it uses less digits than its factorization.

8444221846533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479895 (or 479889 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 54.

The spelling of 8444221846533 in words is "eight trillion, four hundred forty-four billion, two hundred twenty-one million, eight hundred forty-six thousand, five hundred thirty-three".