4443324481920 has 128 divisors (see below), whose sum is σ = 14300603216640. Its totient is φ = 1173382723584.

The previous prime is 4443324481909. The next prime is 4443324481943. The reversal of 4443324481920 is 291844233444.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a self number, because there is not a number n which added to its sum of digits gives 4443324481920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11036374 + ... + 11431893.

It is an arithmetic number, because the mean of its divisors is an integer number (111723462630).

Almost surely, 2^{4443324481920} is an apocalyptic number.

4443324481920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4443324481920 is an abundant number, since it is smaller than the sum of its proper divisors (9857278734720).

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

4443324481920 is a wasteful number, since it uses less digits than its factorization.

4443324481920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22468392 (or 22468380 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 4443324481920 in words is "four trillion, four hundred forty-three billion, three hundred twenty-four million, four hundred eighty-one thousand, nine hundred twenty".