44081461720 has 128 divisors (see below), whose sum is σ = 107446046400. Its totient is φ = 16215883776.

The previous prime is 44081461691. The next prime is 44081461777. The reversal of 44081461720 is 2716418044.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 44081461720.

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 31 ways as a sum of consecutive naturals, for example, 5406687 + ... + 5414833.

Almost surely, 2^44081461720 is an apocalyptic number.

44081461720 is a gapful number since it is divisible by the number (40) 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 44081461720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53723023200).

44081461720 is an abundant number, since it is smaller than the sum of its proper divisors (63364584680).

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

44081461720 is a wasteful number, since it uses less digits than its factorization.

44081461720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8357 (or 8353 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

Adding to 44081461720 its reverse (2716418044), we get a palindrome (46797879764).

The spelling of 44081461720 in words is "forty-four billion, eighty-one million, four hundred sixty-one thousand, seven hundred twenty".