489563851 has 12 divisors (see below), whose sum is σ = 570394440. Its totient is φ = 418961760.

The previous prime is 489563839. The next prime is 489563881. The reversal of 489563851 is 158365984.

It is not a de Polignac number, because 489563851 - 2¹⁹ = 489039563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 489563795 and 489563804.

It is not an unprimeable number, because it can be changed into a prime (489563801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24711 + ... + 39871.

It is an arithmetic number, because the mean of its divisors is an integer number (47532870).

Almost surely, 2^489563851 is an apocalyptic number.

489563851 is a deficient number, since it is larger than the sum of its proper divisors (80830589).

489563851 is a wasteful number, since it uses less digits than its factorization.

489563851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15834 (or 15827 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 489563851 is about 22126.0898262662. The cubic root of 489563851 is about 788.1395364527.

The spelling of 489563851 in words is "four hundred eighty-nine million, five hundred sixty-three thousand, eight hundred fifty-one".