12802520128 has 28 divisors (see below), whose sum is σ = 25532689600. Its totient is φ = 6369086592.

The previous prime is 12802520083. The next prime is 12802520179. The reversal of 12802520128 is 82102520821.

12802520128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12802520128.

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, 489876 + ... + 515347.

Almost surely, 2^12802520128 is an apocalyptic number.

It is an amenable number.

12802520128 is a deficient number, since it is larger than the sum of its proper divisors (12730169472).

12802520128 is a wasteful number, since it uses less digits than its factorization.

12802520128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005434 (or 1005424 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The spelling of 12802520128 in words is "twelve billion, eight hundred two million, five hundred twenty thousand, one hundred twenty-eight".