44128881289 has 8 divisors (see below), whose sum is σ = 44460391040. Its totient is φ = 43798010256.

The previous prime is 44128881283. The next prime is 44128881341. The reversal of 44128881289 is 98218882144.

It is a happy number.

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 44128881289 - 2¹¹ = 44128879241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44128881283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20529 + ... + 297790.

It is an arithmetic number, because the mean of its divisors is an integer number (5557548880).

Almost surely, 2^44128881289 is an apocalyptic number.

It is an amenable number.

44128881289 is a deficient number, since it is larger than the sum of its proper divisors (331509751).

44128881289 is a wasteful number, since it uses less digits than its factorization.

44128881289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319359.

The product of its digits is 2359296, while the sum is 55.

The spelling of 44128881289 in words is "forty-four billion, one hundred twenty-eight million, eight hundred eighty-one thousand, two hundred eighty-nine".