489578243036680 has 128 divisors (see below), whose sum is σ = 1263416703148800. Its totient is φ = 167255284396032.

The previous prime is 489578243036669. The next prime is 489578243036717. The reversal of 489578243036680 is 86630342875984.

It is an unprimeable number.

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, 2116622476 + ... + 2116853764.

It is an arithmetic number, because the mean of its divisors is an integer number (9870442993350).

Almost surely, 2^{489578243036680} is an apocalyptic number.

489578243036680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489578243036680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631708351574400).

489578243036680 is an abundant number, since it is smaller than the sum of its proper divisors (773838460112120).

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

489578243036680 is a wasteful number, since it uses less digits than its factorization.

489578243036680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258303 (or 258299 counting only the distinct ones).

The product of its (nonzero) digits is 1672151040, while the sum is 73.

The spelling of 489578243036680 in words is "four hundred eighty-nine trillion, five hundred seventy-eight billion, two hundred forty-three million, thirty-six thousand, six hundred eighty".