12134663730728 has 64 divisors (see below), whose sum is σ = 28501186245120. Its totient is φ = 4705384420800.

The previous prime is 12134663730703. The next prime is 12134663730743. The reversal of 12134663730728 is 82703736643121.

It is a self number, because there is not a number n which added to its sum of digits gives 12134663730728.

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 15 ways as a sum of consecutive naturals, for example, 46550426 + ... + 46810377.

It is an arithmetic number, because the mean of its divisors is an integer number (445331035080).

Almost surely, 2^{12134663730728} is an apocalyptic number.

It is an amenable number.

12134663730728 is an abundant number, since it is smaller than the sum of its proper divisors (16366522514392).

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

12134663730728 is a wasteful number, since it uses less digits than its factorization.

12134663730728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93361038 (or 93361034 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 12134663730728 in words is "twelve trillion, one hundred thirty-four billion, six hundred sixty-three million, seven hundred thirty thousand, seven hundred twenty-eight".