489575851 has 2 divisors, whose sum is σ = 489575852. Its totient is φ = 489575850.

The previous prime is 489575833. The next prime is 489575899. The reversal of 489575851 is 158575984.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489575851 is a prime.

It is not a weakly prime, because it can be changed into another prime (489525851) 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, 244787925 + 244787926.

It is an arithmetic number, because the mean of its divisors is an integer number (244787926).

Almost surely, 2^489575851 is an apocalyptic number.

489575851 is a deficient number, since it is larger than the sum of its proper divisors (1).

489575851 is an equidigital number, since it uses as much as digits as its factorization.

489575851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016000, while the sum is 52.

The square root of 489575851 is about 22126.3609976878. The cubic root of 489575851 is about 788.1459759240.

The spelling of 489575851 in words is "four hundred eighty-nine million, five hundred seventy-five thousand, eight hundred fifty-one".