4449636609 has 16 divisors (see below), whose sum is σ = 6473386944. Its totient is φ = 2696254400.

The previous prime is 4449636551. The next prime is 4449636637. The reversal of 4449636609 is 9066369444.

It is a cyclic number.

It is not a de Polignac number, because 4449636609 - 2⁷ = 4449636481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4449636109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258739 + ... + 275399.

It is an arithmetic number, because the mean of its divisors is an integer number (404586684).

Almost surely, 2^4449636609 is an apocalyptic number.

It is an amenable number.

4449636609 is a deficient number, since it is larger than the sum of its proper divisors (2023750335).

4449636609 is a wasteful number, since it uses less digits than its factorization.

4449636609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24768.

The product of its (nonzero) digits is 3359232, while the sum is 51.

The square root of 4449636609 is about 66705.5965343239. The cubic root of 4449636609 is about 1644.7813826738.

The spelling of 4449636609 in words is "four billion, four hundred forty-nine million, six hundred thirty-six thousand, six hundred nine".