12804520012 has 24 divisors (see below), whose sum is σ = 22894502400. Its totient is φ = 6263350800.

The previous prime is 12804519971. The next prime is 12804520021. The reversal of 12804520012 is 21002540821.

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 7 ways as a sum of consecutive naturals, for example, 466239 + ... + 492937.

It is an arithmetic number, because the mean of its divisors is an integer number (953937600).

Almost surely, 2^12804520012 is an apocalyptic number.

It is an amenable number.

12804520012 is a deficient number, since it is larger than the sum of its proper divisors (10089982388).

12804520012 is a wasteful number, since it uses less digits than its factorization.

12804520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29301 (or 29299 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The spelling of 12804520012 in words is "twelve billion, eight hundred four million, five hundred twenty thousand, twelve".