489528847849 has 2 divisors, whose sum is σ = 489528847850. Its totient is φ = 489528847848.

The previous prime is 489528847817. The next prime is 489528847897. The reversal of 489528847849 is 948748825984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245227992025 + 244300855824 = 495205^2 + 494268^2 .

It is a cyclic number.

It is not a de Polignac number, because 489528847849 - 2⁵ = 489528847817 is a prime.

It is not a weakly prime, because it can be changed into another prime (489528817849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244764423924 + 244764423925.

It is an arithmetic number, because the mean of its divisors is an integer number (244764423925).

Almost surely, 2^489528847849 is an apocalyptic number.

It is an amenable number.

489528847849 is a deficient number, since it is larger than the sum of its proper divisors (1).

489528847849 is an equidigital number, since it uses as much as digits as its factorization.

489528847849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1486356480, while the sum is 76.

The spelling of 489528847849 in words is "four hundred eighty-nine billion, five hundred twenty-eight million, eight hundred forty-seven thousand, eight hundred forty-nine".