44481589681 has 8 divisors (see below), whose sum is σ = 47706174720. Its totient is φ = 41345349552.

The previous prime is 44481589667. The next prime is 44481589697. The reversal of 44481589681 is 18698518444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44481589681 - 2¹⁹ = 44481065393 is a prime.

It is a super-2 number, since 2×44481589681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44481589601) by changing a digit.

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, 22085185 + ... + 22087198.

It is an arithmetic number, because the mean of its divisors is an integer number (5963271840).

Almost surely, 2^44481589681 is an apocalyptic number.

It is an amenable number.

44481589681 is a deficient number, since it is larger than the sum of its proper divisors (3224585039).

44481589681 is a wasteful number, since it uses less digits than its factorization.

44481589681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44172455.

The product of its digits is 8847360, while the sum is 58.

The spelling of 44481589681 in words is "forty-four billion, four hundred eighty-one million, five hundred eighty-nine thousand, six hundred eighty-one".