44520334464 has 128 divisors (see below), whose sum is σ = 119369376000. Its totient is φ = 14701040640.

The previous prime is 44520334457. The next prime is 44520334499. The reversal of 44520334464 is 46443302544.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45849499 + ... + 45850469.

It is an arithmetic number, because the mean of its divisors is an integer number (932573250).

Almost surely, 2^44520334464 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 44520334464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59684688000).

44520334464 is an abundant number, since it is smaller than the sum of its proper divisors (74849041536).

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

44520334464 is a wasteful number, since it uses less digits than its factorization.

44520334464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 39.

The spelling of 44520334464 in words is "forty-four billion, five hundred twenty million, three hundred thirty-four thousand, four hundred sixty-four".