489741447618 has 32 divisors (see below), whose sum is σ = 1106760340800. Its totient is φ = 160480247328.

The previous prime is 489741447577. The next prime is 489741447653. The reversal of 489741447618 is 816744147984.

It is a happy number.

489741447618 is a `hidden beast` number, since 4 + 8 + 9 + 7 + 4 + 1 + 4 + 4 + 7 + 618 = 666.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 76855171 + ... + 76861542.

It is an arithmetic number, because the mean of its divisors is an integer number (34586260650).

Almost surely, 2^489741447618 is an apocalyptic number.

489741447618 is an abundant number, since it is smaller than the sum of its proper divisors (617018893182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489741447618 is a wasteful number, since it uses less digits than its factorization.

489741447618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153716783 (or 153716777 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 489741447618 in words is "four hundred eighty-nine billion, seven hundred forty-one million, four hundred forty-seven thousand, six hundred eighteen".