489391733601 has 64 divisors (see below), whose sum is σ = 751638666240. Its totient is φ = 314492855040.

The previous prime is 489391733599. The next prime is 489391733639. The reversal of 489391733601 is 106337193984.

It is a happy number.

489391733601 is a `hidden beast` number, since 4 + 89 + 39 + 173 + 360 + 1 = 666.

It is not a de Polignac number, because 489391733601 - 2¹ = 489391733599 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (489391733651) 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 in 63 ways as a sum of consecutive naturals, for example, 112838905 + ... + 112843241.

It is an arithmetic number, because the mean of its divisors is an integer number (11744354160).

Almost surely, 2^489391733601 is an apocalyptic number.

It is an amenable number.

489391733601 is a deficient number, since it is larger than the sum of its proper divisors (262246932639).

489391733601 is a wasteful number, since it uses less digits than its factorization.

489391733601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643 (or 5637 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 489391733601 in words is "four hundred eighty-nine billion, three hundred ninety-one million, seven hundred thirty-three thousand, six hundred one".