4449101749 has 2 divisors, whose sum is σ = 4449101750. Its totient is φ = 4449101748.

The previous prime is 4449101747. The next prime is 4449101771. The reversal of 4449101749 is 9471019444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3641519025 + 807582724 = 60345^2 + 28418^2 .

It is a cyclic number.

It is not a de Polignac number, because 4449101749 - 2¹ = 4449101747 is a prime.

Together with 4449101747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4449101747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224550874 + 2224550875.

It is an arithmetic number, because the mean of its divisors is an integer number (2224550875).

Almost surely, 2^4449101749 is an apocalyptic number.

It is an amenable number.

4449101749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4449101749 is an equidigital number, since it uses as much as digits as its factorization.

4449101749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 4449101749 is about 66701.5873049510. The cubic root of 4449101749 is about 1644.7154774401.

The spelling of 4449101749 in words is "four billion, four hundred forty-nine million, one hundred one thousand, seven hundred forty-nine".