489351105021 has 8 divisors (see below), whose sum is σ = 655746875200. Its totient is φ = 324594702432.

The previous prime is 489351105007. The next prime is 489351105031. The reversal of 489351105021 is 120501153984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 489351105021 - 2¹¹ = 489351102973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489351105031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409841200 + ... + 409842393.

It is an arithmetic number, because the mean of its divisors is an integer number (81968359400).

Almost surely, 2^489351105021 is an apocalyptic number.

It is an amenable number.

489351105021 is a deficient number, since it is larger than the sum of its proper divisors (166395770179).

489351105021 is a wasteful number, since it uses less digits than its factorization.

489351105021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819683795.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 489351105021 in words is "four hundred eighty-nine billion, three hundred fifty-one million, one hundred five thousand, twenty-one".