44128881287 has 4 divisors (see below), whose sum is σ = 44145331560. Its totient is φ = 44112431016.

The previous prime is 44128881283. The next prime is 44128881341. The reversal of 44128881287 is 78218882144.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44128881287 - 2² = 44128881283 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 8221112 + ... + 8226477.

It is an arithmetic number, because the mean of its divisors is an integer number (11036332890).

Almost surely, 2^44128881287 is an apocalyptic number.

44128881287 is a deficient number, since it is larger than the sum of its proper divisors (16450273).

44128881287 is a wasteful number, since it uses less digits than its factorization.

44128881287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450272.

The product of its digits is 1835008, while the sum is 53.

The spelling of 44128881287 in words is "forty-four billion, one hundred twenty-eight million, eight hundred eighty-one thousand, two hundred eighty-seven".