4404449966549 has 4 divisors (see below), whose sum is σ = 4546528997760. Its totient is φ = 4262370935340.

The previous prime is 4404449966531. The next prime is 4404449966597. The reversal of 4404449966549 is 9456699444044.

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 a de Polignac number, because none of the positive numbers 2^k-4404449966549 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 (4604449966549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71039515559 + ... + 71039515620.

It is an arithmetic number, because the mean of its divisors is an integer number (1136632249440).

Almost surely, 2^{4404449966549} is an apocalyptic number.

It is an amenable number.

4404449966549 is a deficient number, since it is larger than the sum of its proper divisors (142079031211).

4404449966549 is a wasteful number, since it uses less digits than its factorization.

4404449966549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142079031210.

The product of its (nonzero) digits is 537477120, while the sum is 68.

The spelling of 4404449966549 in words is "four trillion, four hundred four billion, four hundred forty-nine million, nine hundred sixty-six thousand, five hundred forty-nine".