44251421144 has 64 divisors (see below), whose sum is σ = 95977789440. Its totient is φ = 18735131520.

The previous prime is 44251421111. The next prime is 44251421177. The reversal of 44251421144 is 44112415244.

44251421144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44251421111) and next prime (44251421177).

It is a self number, because there is not a number n which added to its sum of digits gives 44251421144.

It is a congruent number.

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, 2419217 + ... + 2437439.

It is an arithmetic number, because the mean of its divisors is an integer number (1499652960).

Almost surely, 2^44251421144 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 44251421144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47988894720).

44251421144 is an abundant number, since it is smaller than the sum of its proper divisors (51726368296).

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

44251421144 is a wasteful number, since it uses less digits than its factorization.

44251421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760 (or 18756 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

Adding to 44251421144 its reverse (44112415244), we get a palindrome (88363836388).

The spelling of 44251421144 in words is "forty-four billion, two hundred fifty-one million, four hundred twenty-one thousand, one hundred forty-four".