12326205181778 has 16 divisors (see below), whose sum is σ = 18720413512416. Its totient is φ = 6086133558720.

The previous prime is 12326205181769. The next prime is 12326205181811. The reversal of 12326205181778 is 87718150262321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16180103 + ... + 16924778.

It is an arithmetic number, because the mean of its divisors is an integer number (1170025844526).

Almost surely, 2^{12326205181778} is an apocalyptic number.

12326205181778 is a deficient number, since it is larger than the sum of its proper divisors (6394208330638).

12326205181778 is a wasteful number, since it uses less digits than its factorization.

12326205181778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33107209.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 12326205181778 in words is "twelve trillion, three hundred twenty-six billion, two hundred five million, one hundred eighty-one thousand, seven hundred seventy-eight".