489501283849 has 2 divisors, whose sum is σ = 489501283850. Its totient is φ = 489501283848.

The previous prime is 489501283781. The next prime is 489501283879. The reversal of 489501283849 is 948382105984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300912588025 + 188588695824 = 548555^2 + 434268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489501283849 is a prime.

It is a super-2 number, since 2×489501283849² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (489501283879) 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, 244750641924 + 244750641925.

It is an arithmetic number, because the mean of its divisors is an integer number (244750641925).

Almost surely, 2^489501283849 is an apocalyptic number.

It is an amenable number.

489501283849 is a deficient number, since it is larger than the sum of its proper divisors (1).

489501283849 is an equidigital number, since it uses as much as digits as its factorization.

489501283849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 489501283849 in words is "four hundred eighty-nine billion, five hundred one million, two hundred eighty-three thousand, eight hundred forty-nine".