4144444505 has 4 divisors (see below), whose sum is σ = 4973333412. Its totient is φ = 3315555600.

The previous prime is 4144444477. The next prime is 4144444547. The reversal of 4144444505 is 5054444414.

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 646786624 + 3497657881 = 25432^2 + 59141^2 .

It is not a de Polignac number, because 4144444505 - 2⁶ = 4144444441 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414444446 + ... + 414444455.

It is an arithmetic number, because the mean of its divisors is an integer number (1243333353).

Almost surely, 2^4144444505 is an apocalyptic number.

It is an amenable number.

4144444505 is a deficient number, since it is larger than the sum of its proper divisors (828888907).

4144444505 is an equidigital number, since it uses as much as digits as its factorization.

4144444505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828888906.

The product of its (nonzero) digits is 102400, while the sum is 35.

The square root of 4144444505 is about 64377.3601897437. The cubic root of 4144444505 is about 1606.2831720503.

Adding to 4144444505 its reverse (5054444414), we get a palindrome (9198888919).

Subtracting 4144444505 from its reverse (5054444414), we obtain a palindrome (909999909).

The spelling of 4144444505 in words is "four billion, one hundred forty-four million, four hundred forty-four thousand, five hundred five".