4544691449 has 2 divisors, whose sum is σ = 4544691450. Its totient is φ = 4544691448.

The previous prime is 4544691443. The next prime is 4544691451. The reversal of 4544691449 is 9441964454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4449823849 + 94867600 = 66707^2 + 9740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4544691449 is a prime.

It is a super-2 number, since 2×4544691449² = 41308440733227439202, which contains 22 as substring.

Together with 4544691451, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4544691397 and 4544691406.

It is not a weakly prime, because it can be changed into another prime (4544691443) 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, 2272345724 + 2272345725.

It is an arithmetic number, because the mean of its divisors is an integer number (2272345725).

Almost surely, 2^4544691449 is an apocalyptic number.

It is an amenable number.

4544691449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4544691449 is an equidigital number, since it uses as much as digits as its factorization.

4544691449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 50.

The square root of 4544691449 is about 67414.3267340111. The cubic root of 4544691449 is about 1656.4111085449.

The spelling of 4544691449 in words is "four billion, five hundred forty-four million, six hundred ninety-one thousand, four hundred forty-nine".