4448165749 has 2 divisors, whose sum is σ = 4448165750. Its totient is φ = 4448165748.

The previous prime is 4448165747. The next prime is 4448165779. The reversal of 4448165749 is 9475618444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3633919524 + 814246225 = 60282^2 + 28535^2 .

It is a cyclic number.

It is not a de Polignac number, because 4448165749 - 2¹ = 4448165747 is a prime.

Together with 4448165747, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4448165696 and 4448165705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4448165747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224082874 + 2224082875.

It is an arithmetic number, because the mean of its divisors is an integer number (2224082875).

Almost surely, 2^4448165749 is an apocalyptic number.

It is an amenable number.

4448165749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4448165749 is an equidigital number, since it uses as much as digits as its factorization.

4448165749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The square root of 4448165749 is about 66694.5706111075. The cubic root of 4448165749 is about 1644.6001311865.

The spelling of 4448165749 in words is "four billion, four hundred forty-eight million, one hundred sixty-five thousand, seven hundred forty-nine".