12816524512 has 24 divisors (see below), whose sum is σ = 27526399992. Its totient is φ = 5825692800.

The previous prime is 12816524491. The next prime is 12816524549. The reversal of 12816524512 is 21542561821.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 18204939 + ... + 18205642.

It is an arithmetic number, because the mean of its divisors is an integer number (1146933333).

Almost surely, 2^12816524512 is an apocalyptic number.

It is an amenable number.

12816524512 is an abundant number, since it is smaller than the sum of its proper divisors (14709875480).

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

12816524512 is a wasteful number, since it uses less digits than its factorization.

12816524512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36410602 (or 36410594 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The spelling of 12816524512 in words is "twelve billion, eight hundred sixteen million, five hundred twenty-four thousand, five hundred twelve".