12642473267433 has 24 divisors (see below), whose sum is σ = 18611442237960. Its totient is φ = 8266829276160.

The previous prime is 12642473267399. The next prime is 12642473267449. The reversal of 12642473267433 is 33476237424621.

12642473267433 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 247 + 326 + 74 + 3 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2458664768169 + 10183808499264 = 1568013^2 + 3191208^2 .

It is not a de Polignac number, because 12642473267433 - 2⁹ = 12642473266921 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12642473267433.

It is not an unprimeable number, because it can be changed into a prime (12642473267233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2339698 + ... + 5546091.

It is an arithmetic number, because the mean of its divisors is an integer number (775476759915).

Almost surely, 2^{12642473267433} is an apocalyptic number.

It is an amenable number.

12642473267433 is a deficient number, since it is larger than the sum of its proper divisors (5968968970527).

12642473267433 is a wasteful number, since it uses less digits than its factorization.

12642473267433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7889209 (or 7889206 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 54.

The spelling of 12642473267433 in words is "twelve trillion, six hundred forty-two billion, four hundred seventy-three million, two hundred sixty-seven thousand, four hundred thirty-three".