12844821508 has 12 divisors (see below), whose sum is σ = 22484256732. Its totient is φ = 6420748160.

The previous prime is 12844821499. The next prime is 12844821557. The reversal of 12844821508 is 80512844821.

12844821508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10533327424 + 2311494084 = 102632^2 + 48078^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398185 + ... + 429232.

It is an arithmetic number, because the mean of its divisors is an integer number (1873688061).

Almost surely, 2^12844821508 is an apocalyptic number.

It is an amenable number.

12844821508 is a deficient number, since it is larger than the sum of its proper divisors (9639435224).

12844821508 is a wasteful number, since it uses less digits than its factorization.

12844821508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831302 (or 831300 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 12844821508 in words is "twelve billion, eight hundred forty-four million, eight hundred twenty-one thousand, five hundred eight".