44459591072 has 48 divisors (see below), whose sum is σ = 94388073192. Its totient is φ = 20492559360.

The previous prime is 44459591039. The next prime is 44459591081. The reversal of 44459591072 is 27019595444.

It can be written as a sum of positive squares in 4 ways, for example, as 38823185296 + 5636405776 = 197036^2 + 75076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44459591072.

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 7 ways as a sum of consecutive naturals, for example, 244322 + ... + 385502.

Almost surely, 2^44459591072 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 44459591072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47194036596).

44459591072 is an abundant number, since it is smaller than the sum of its proper divisors (49928482120).

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

44459591072 is a wasteful number, since it uses less digits than its factorization.

44459591072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141961 (or 141953 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 44459591072 in words is "forty-four billion, four hundred fifty-nine million, five hundred ninety-one thousand, seventy-two".