8444842459 has 4 divisors (see below), whose sum is σ = 8500768720. Its totient is φ = 8388916200.

The previous prime is 8444842411. The next prime is 8444842477. The reversal of 8444842459 is 9542484448.

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 8444842459 - 2⁷ = 8444842331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8444842499) 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, 27962904 + ... + 27963205.

It is an arithmetic number, because the mean of its divisors is an integer number (2125192180).

Almost surely, 2^8444842459 is an apocalyptic number.

8444842459 is a deficient number, since it is larger than the sum of its proper divisors (55926261).

8444842459 is a wasteful number, since it uses less digits than its factorization.

8444842459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55926260.

The product of its digits is 5898240, while the sum is 52.

The square root of 8444842459 is about 91895.8239475549. The cubic root of 8444842459 is about 2036.4035745666.

The spelling of 8444842459 in words is "eight billion, four hundred forty-four million, eight hundred forty-two thousand, four hundred fifty-nine".