489395761806 has 64 divisors (see below), whose sum is σ = 1186088670720. Its totient is φ = 131501076480.

The previous prime is 489395761793. The next prime is 489395761807. The reversal of 489395761806 is 608167593984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489395761807) 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 31 ways as a sum of consecutive naturals, for example, 2128915 + ... + 2347566.

It is an arithmetic number, because the mean of its divisors is an integer number (18532635480).

Almost surely, 2^489395761806 is an apocalyptic number.

489395761806 is an abundant number, since it is smaller than the sum of its proper divisors (696692908914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489395761806 is a wasteful number, since it uses less digits than its factorization.

489395761806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476649.

The product of its (nonzero) digits is 78382080, while the sum is 66.

The spelling of 489395761806 in words is "four hundred eighty-nine billion, three hundred ninety-five million, seven hundred sixty-one thousand, eight hundred six".