8144441815 has 16 divisors (see below), whose sum is σ = 9896368608. Its totient is φ = 6433612416.

The previous prime is 8144441807. The next prime is 8144441819. The reversal of 8144441815 is 5181444418.

It is a cyclic number.

It is not a de Polignac number, because 8144441815 - 2³ = 8144441807 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 (8144441819) 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 15 ways as a sum of consecutive naturals, for example, 1007329 + ... + 1015381.

It is an arithmetic number, because the mean of its divisors is an integer number (618523038).

Almost surely, 2^8144441815 is an apocalyptic number.

8144441815 is a deficient number, since it is larger than the sum of its proper divisors (1751926793).

8144441815 is a wasteful number, since it uses less digits than its factorization.

8144441815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10578.

The product of its digits is 81920, while the sum is 40.

The square root of 8144441815 is about 90246.5612364261. The cubic root of 8144441815 is about 2011.9650934391.

The spelling of 8144441815 in words is "eight billion, one hundred forty-four million, four hundred forty-one thousand, eight hundred fifteen".