489545851 has 8 divisors (see below), whose sum is σ = 494187840. Its totient is φ = 484925952.

The previous prime is 489545809. The next prime is 489545867. The reversal of 489545851 is 158545984.

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

It is a cyclic number.

It is not a de Polignac number, because 489545851 - 2²¹ = 487448699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489545795 and 489545804.

It is not an unprimeable number, because it can be changed into a prime (489545891) 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 in 7 ways as a sum of consecutive naturals, for example, 40821 + ... + 51433.

It is an arithmetic number, because the mean of its divisors is an integer number (61773480).

Almost surely, 2^489545851 is an apocalyptic number.

489545851 is a deficient number, since it is larger than the sum of its proper divisors (4641989).

489545851 is a wasteful number, since it uses less digits than its factorization.

489545851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11045.

The product of its digits is 1152000, while the sum is 49.

The square root of 489545851 is about 22125.6830629023. The cubic root of 489545851 is about 788.1298770484.

The spelling of 489545851 in words is "four hundred eighty-nine million, five hundred forty-five thousand, eight hundred fifty-one".