12724288105826 has 32 divisors (see below), whose sum is σ = 21430492888896. Its totient is φ = 5615957088000.

The previous prime is 12724288105813. The next prime is 12724288105847. The reversal of 12724288105826 is 62850188242721.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33237995 + ... + 33618638.

It is an arithmetic number, because the mean of its divisors is an integer number (669702902778).

Almost surely, 2^{12724288105826} is an apocalyptic number.

12724288105826 is a deficient number, since it is larger than the sum of its proper divisors (8706204783070).

12724288105826 is a wasteful number, since it uses less digits than its factorization.

12724288105826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66856898.

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 12724288105826 in words is "twelve trillion, seven hundred twenty-four billion, two hundred eighty-eight million, one hundred five thousand, eight hundred twenty-six".