4481308521768 has 288 divisors, whose sum is σ = 12472615051200. Its totient is φ = 1341109186560.

The previous prime is 4481308521709. The next prime is 4481308521799. The reversal of 4481308521768 is 8671258031844.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2788616821 + ... + 2788618427.

It is an arithmetic number, because the mean of its divisors is an integer number (43307691150).

Almost surely, 2^{4481308521768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4481308521768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6236307525600).

4481308521768 is an abundant number, since it is smaller than the sum of its proper divisors (7991306529432).

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

4481308521768 is a wasteful number, since it uses less digits than its factorization.

4481308521768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 4481308521768 in words is "four trillion, four hundred eighty-one billion, three hundred eight million, five hundred twenty-one thousand, seven hundred sixty-eight".