44445249888 has 144 divisors (see below), whose sum is σ = 133469920080. Its totient is φ = 12870918144.

The previous prime is 44445249883. The next prime is 44445249911. The reversal of 44445249888 is 88894254444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44445249881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299058 + ... + 422286.

It is an arithmetic number, because the mean of its divisors is an integer number (926874445).

Almost surely, 2^44445249888 is an apocalyptic number.

44445249888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44445249888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66734960040).

44445249888 is an abundant number, since it is smaller than the sum of its proper divisors (89024670192).

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

44445249888 is a wasteful number, since it uses less digits than its factorization.

44445249888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123289 (or 123264 counting only the distinct ones).

The product of its digits is 47185920, while the sum is 60.

The spelling of 44445249888 in words is "forty-four billion, four hundred forty-five million, two hundred forty-nine thousand, eight hundred eighty-eight".