8446821168 has 40 divisors (see below), whose sum is σ = 22410714928. Its totient is φ = 2739508992.

The previous prime is 8446821157. The next prime is 8446821191. The reversal of 8446821168 is 8611286448.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2376271 + ... + 2379822.

Almost surely, 2^8446821168 is an apocalyptic number.

It is an amenable number.

8446821168 is an abundant number, since it is smaller than the sum of its proper divisors (13963893760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8446821168 is a wasteful number, since it uses less digits than its factorization.

8446821168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756141 (or 4756135 counting only the distinct ones).

The product of its digits is 589824, while the sum is 48.

The square root of 8446821168 is about 91906.5893611552. The cubic root of 8446821168 is about 2036.5626118894.

The spelling of 8446821168 in words is "eight billion, four hundred forty-six million, eight hundred twenty-one thousand, one hundred sixty-eight".