12636392260368 has 20 divisors (see below), whose sum is σ = 32644013339408. Its totient is φ = 4212130753440.

The previous prime is 12636392260363. The next prime is 12636392260489. The reversal of 12636392260368 is 86306229363621.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12636392260363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131629085998 + ... + 131629086093.

Almost surely, 2^{12636392260368} is an apocalyptic number.

It is an amenable number.

12636392260368 is an abundant number, since it is smaller than the sum of its proper divisors (20007621079040).

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

12636392260368 is a wasteful number, since it uses less digits than its factorization.

12636392260368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263258172102 (or 263258172096 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 57.

The spelling of 12636392260368 in words is "twelve trillion, six hundred thirty-six billion, three hundred ninety-two million, two hundred sixty thousand, three hundred sixty-eight".