489987590816 has 36 divisors (see below), whose sum is σ = 980736704766. Its totient is φ = 240977445120.

The previous prime is 489987590801. The next prime is 489987590843. The reversal of 489987590816 is 618095789984.

It can be written as a sum of positive squares in 3 ways, for example, as 294089290000 + 195898300816 = 542300^2 + 442604^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1938455 + ... + 2176598.

Almost surely, 2^489987590816 is an apocalyptic number.

It is an amenable number.

489987590816 is an abundant number, since it is smaller than the sum of its proper divisors (490749113950).

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

489987590816 is an equidigital number, since it uses as much as digits as its factorization.

489987590816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115185 (or 4115116 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 74.

The spelling of 489987590816 in words is "four hundred eighty-nine billion, nine hundred eighty-seven million, five hundred ninety thousand, eight hundred sixteen".