44081137536 has 256 divisors, whose sum is σ = 122589573120. Its totient is φ = 14023884800.

The previous prime is 44081137493. The next prime is 44081137553. The reversal of 44081137536 is 63573118044.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230791201 + ... + 230791391.

It is an arithmetic number, because the mean of its divisors is an integer number (478865520).

Almost surely, 2^44081137536 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 44081137536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61294786560).

44081137536 is an abundant number, since it is smaller than the sum of its proper divisors (78508435584).

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

44081137536 is a wasteful number, since it uses less digits than its factorization.

44081137536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 44081137536 in words is "forty-four billion, eighty-one million, one hundred thirty-seven thousand, five hundred thirty-six".