4421444549 has 2 divisors, whose sum is σ = 4421444550. Its totient is φ = 4421444548.

The previous prime is 4421444479. The next prime is 4421444623. The reversal of 4421444549 is 9454441244.

4421444549 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3969882049 + 451562500 = 63007^2 + 21250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421444549 - 2¹⁶ = 4421379013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4421444149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210722274 + 2210722275.

It is an arithmetic number, because the mean of its divisors is an integer number (2210722275).

Almost surely, 2^4421444549 is an apocalyptic number.

It is an amenable number.

4421444549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421444549 is an equidigital number, since it uses as much as digits as its factorization.

4421444549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 41.

The square root of 4421444549 is about 66493.9437016635. The cubic root of 4421444549 is about 1641.3003454766.

The spelling of 4421444549 in words is "four billion, four hundred twenty-one million, four hundred forty-four thousand, five hundred forty-nine".