12363178342561 has 4 divisors (see below), whose sum is σ = 12392544562324. Its totient is φ = 12333812122800.

The previous prime is 12363178342549. The next prime is 12363178342651. The reversal of 12363178342561 is 16524387136321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1938958776225 + 10424219566336 = 1392465^2 + 3228656^2 .

It is a cyclic number.

It is not a de Polignac number, because 12363178342561 - 2¹³ = 12363178334369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12363178342499 and 12363178342508.

It is not an unprimeable number, because it can be changed into a prime (12363178342531) 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 3 ways as a sum of consecutive naturals, for example, 14683109250 + ... + 14683110091.

It is an arithmetic number, because the mean of its divisors is an integer number (3098136140581).

Almost surely, 2^{12363178342561} is an apocalyptic number.

It is an amenable number.

12363178342561 is a deficient number, since it is larger than the sum of its proper divisors (29366219763).

12363178342561 is an equidigital number, since it uses as much as digits as its factorization.

12363178342561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29366219762.

The product of its digits is 4354560, while the sum is 52.

The spelling of 12363178342561 in words is "twelve trillion, three hundred sixty-three billion, one hundred seventy-eight million, three hundred forty-two thousand, five hundred sixty-one".