12985628168 has 12 divisors (see below), whose sum is σ = 24348657165. Its totient is φ = 6492652928.

The previous prime is 12985628153. The next prime is 12985628203. The reversal of 12985628168 is 86182658921.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 8653092484 + 4332535684 = 93022^2 + 65822^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=80578.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 302168 + ... + 342456.

Almost surely, 2^12985628168 is an apocalyptic number.

It is an amenable number.

12985628168 is a deficient number, since it is larger than the sum of its proper divisors (11363028997).

12985628168 is an frugal number, since it uses more digits than its factorization.

12985628168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80584 (or 40291 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 56.

The spelling of 12985628168 in words is "twelve billion, nine hundred eighty-five million, six hundred twenty-eight thousand, one hundred sixty-eight".