4868865649 has 2 divisors, whose sum is σ = 4868865650. Its totient is φ = 4868865648.

The previous prime is 4868865601. The next prime is 4868865707. The reversal of 4868865649 is 9465688684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4427571600 + 441294049 = 66540^2 + 21007^2 .

It is a cyclic number.

It is not a de Polignac number, because 4868865649 - 2⁹ = 4868865137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4868805649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2434432824 + 2434432825.

It is an arithmetic number, because the mean of its divisors is an integer number (2434432825).

Almost surely, 2^4868865649 is an apocalyptic number.

It is an amenable number.

4868865649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4868865649 is an equidigital number, since it uses as much as digits as its factorization.

4868865649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79626240, while the sum is 64.

The square root of 4868865649 is about 69777.2573909293. The cubic root of 4868865649 is about 1694.8942133693.

The spelling of 4868865649 in words is "four billion, eight hundred sixty-eight million, eight hundred sixty-five thousand, six hundred forty-nine".