12173645012 has 12 divisors (see below), whose sum is σ = 21329276640. Its totient is φ = 6079565976.

The previous prime is 12173645009. The next prime is 12173645041. The reversal of 12173645012 is 21054637121.

12173645012 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 12173645012.

It is a congruent number.

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, 1810358 + ... + 1817069.

It is an arithmetic number, because the mean of its divisors is an integer number (1777439720).

Almost surely, 2^12173645012 is an apocalyptic number.

It is an amenable number.

12173645012 is a deficient number, since it is larger than the sum of its proper divisors (9155631628).

12173645012 is a wasteful number, since it uses less digits than its factorization.

12173645012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628270 (or 3628268 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 12173645012 in words is "twelve billion, one hundred seventy-three million, six hundred forty-five thousand, twelve".