6489284449 has 2 divisors, whose sum is σ = 6489284450. Its totient is φ = 6489284448.

The previous prime is 6489284381. The next prime is 6489284519. The reversal of 6489284449 is 9444829846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4852515600 + 1636768849 = 69660^2 + 40457^2 .

It is a cyclic number.

It is not a de Polignac number, because 6489284449 - 2¹³ = 6489276257 is a prime.

It is a super-2 number, since 2×6489284449² = 84221625320066467202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6489284393 and 6489284402.

It is not a weakly prime, because it can be changed into another prime (6489287449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244642224 + 3244642225.

It is an arithmetic number, because the mean of its divisors is an integer number (3244642225).

Almost surely, 2^6489284449 is an apocalyptic number.

It is an amenable number.

6489284449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6489284449 is an equidigital number, since it uses as much as digits as its factorization.

6489284449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15925248, while the sum is 58.

The square root of 6489284449 is about 80556.0950456264. The cubic root of 6489284449 is about 1865.2294780963.

The spelling of 6489284449 in words is "six billion, four hundred eighty-nine million, two hundred eighty-four thousand, four hundred forty-nine".