12847123584 has 160 divisors (see below), whose sum is σ = 40482377100. Its totient is φ = 4030414848.

The previous prime is 12847123573. The next prime is 12847123621. The reversal of 12847123584 is 48532174821.

12847123584 is a `hidden beast` number, since 1 + 2 + 8 + 47 + 1 + 23 + 584 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10974657600 + 1872465984 = 104760^2 + 43272^2 .

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 19 ways as a sum of consecutive naturals, for example, 139812 + ... + 212700.

Almost surely, 2^12847123584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12847123584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20241188550).

12847123584 is an abundant number, since it is smaller than the sum of its proper divisors (27635253516).

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

12847123584 is an equidigital number, since it uses as much as digits as its factorization.

12847123584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72932 (or 72911 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 12847123584 in words is "twelve billion, eight hundred forty-seven million, one hundred twenty-three thousand, five hundred eighty-four".