2044545609 has 8 divisors (see below), whose sum is σ = 2731482432. Its totient is φ = 1360319600.

The previous prime is 2044545589. The next prime is 2044545611. The reversal of 2044545609 is 9065454402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2044545609 - 2¹¹ = 2044543561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2044540609) 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 7 ways as a sum of consecutive naturals, for example, 675942 + ... + 678959.

It is an arithmetic number, because the mean of its divisors is an integer number (341435304).

Almost surely, 2^2044545609 is an apocalyptic number.

It is an amenable number.

2044545609 is a deficient number, since it is larger than the sum of its proper divisors (686936823).

2044545609 is a wasteful number, since it uses less digits than its factorization.

2044545609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355407.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 2044545609 is about 45216.6518994938. The cubic root of 2044545609 is about 1269.2064418565.

The spelling of 2044545609 in words is "two billion, forty-four million, five hundred forty-five thousand, six hundred nine".