2644108489 has 4 divisors (see below), whose sum is σ = 2884482000. Its totient is φ = 2403734980.

The previous prime is 2644108483. The next prime is 2644108561. The reversal of 2644108489 is 9848014462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2644108489 - 2²⁹ = 2107237577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2644108483) by changing a digit.

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, 120186739 + ... + 120186760.

It is an arithmetic number, because the mean of its divisors is an integer number (721120500).

Almost surely, 2^2644108489 is an apocalyptic number.

It is an amenable number.

2644108489 is a deficient number, since it is larger than the sum of its proper divisors (240373511).

2644108489 is a wasteful number, since it uses less digits than its factorization.

2644108489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240373510.

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 2644108489 is about 51420.8954511685. The cubic root of 2644108489 is about 1382.8012288949.

The spelling of 2644108489 in words is "two billion, six hundred forty-four million, one hundred eight thousand, four hundred eighty-nine".