489514559721 has 16 divisors (see below), whose sum is σ = 742978621440. Its totient is φ = 283776555920.

The previous prime is 489514559713. The next prime is 489514559749. The reversal of 489514559721 is 127955415984.

It is not a de Polignac number, because 489514559721 - 2³ = 489514559713 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (489514559711) 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 in 15 ways as a sum of consecutive naturals, for example, 322472601 + ... + 322474118.

It is an arithmetic number, because the mean of its divisors is an integer number (46436163840).

Almost surely, 2^489514559721 is an apocalyptic number.

It is an amenable number.

489514559721 is a deficient number, since it is larger than the sum of its proper divisors (253464061719).

489514559721 is a wasteful number, since it uses less digits than its factorization.

489514559721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644946756.

The product of its digits is 18144000, while the sum is 60.

The spelling of 489514559721 in words is "four hundred eighty-nine billion, five hundred fourteen million, five hundred fifty-nine thousand, seven hundred twenty-one".