4644816318 has 16 divisors (see below), whose sum is σ = 10321814160. Its totient is φ = 1548272088.

The previous prime is 4644816317. The next prime is 4644816331. The reversal of 4644816318 is 8136184464.

4644816318 is a `hidden beast` number, since 4 + 6 + 4 + 4 + 8 + 1 + 631 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644816311) 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 in 7 ways as a sum of consecutive naturals, for example, 43007505 + ... + 43007612.

It is an arithmetic number, because the mean of its divisors is an integer number (645113385).

Almost surely, 2^4644816318 is an apocalyptic number.

4644816318 is an abundant number, since it is smaller than the sum of its proper divisors (5676997842).

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

4644816318 is a wasteful number, since it uses less digits than its factorization.

4644816318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86015128 (or 86015122 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 4644816318 is about 68152.8892857816. The cubic root of 4644816318 is about 1668.4870802039.

The spelling of 4644816318 in words is "four billion, six hundred forty-four million, eight hundred sixteen thousand, three hundred eighteen".