44422640905 has 4 divisors (see below), whose sum is σ = 53307169092. Its totient is φ = 35538112720.

The previous prime is 44422640893. The next prime is 44422640921. The reversal of 44422640905 is 50904622444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32093647609 + 12328993296 = 179147^2 + 111036^2 .

It is not a de Polignac number, because 44422640905 - 2⁹ = 44422640393 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 4442264086 + ... + 4442264095.

It is an arithmetic number, because the mean of its divisors is an integer number (13326792273).

Almost surely, 2^44422640905 is an apocalyptic number.

It is an amenable number.

44422640905 is a deficient number, since it is larger than the sum of its proper divisors (8884528187).

44422640905 is an equidigital number, since it uses as much as digits as its factorization.

44422640905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884528186.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 44422640905 in words is "forty-four billion, four hundred twenty-two million, six hundred forty thousand, nine hundred five".