489957183659 has 4 divisors (see below), whose sum is σ = 489959045016. Its totient is φ = 489955322304.

The previous prime is 489957183647. The next prime is 489957183763. The reversal of 489957183659 is 956381759984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489957183659 - 2²⁸ = 489688748203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489957183619) 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 3 ways as a sum of consecutive naturals, for example, 454694 + ... + 1089339.

It is an arithmetic number, because the mean of its divisors is an integer number (122489761254).

Almost surely, 2^489957183659 is an apocalyptic number.

489957183659 is a deficient number, since it is larger than the sum of its proper divisors (1861357).

489957183659 is a wasteful number, since it uses less digits than its factorization.

489957183659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861356.

The product of its digits is 587865600, while the sum is 74.

The spelling of 489957183659 in words is "four hundred eighty-nine billion, nine hundred fifty-seven million, one hundred eighty-three thousand, six hundred fifty-nine".