12386106334778 has 16 divisors (see below), whose sum is σ = 20343520383840. Its totient is φ = 5609118783600.

The previous prime is 12386106334759. The next prime is 12386106334801. The reversal of 12386106334778 is 87743360168321.

It is a Curzon number.

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, 1046471468 + ... + 1046483303.

It is an arithmetic number, because the mean of its divisors is an integer number (1271470023990).

Almost surely, 2^{12386106334778} is an apocalyptic number.

12386106334778 is a deficient number, since it is larger than the sum of its proper divisors (7957414049062).

12386106334778 is a wasteful number, since it uses less digits than its factorization.

12386106334778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092955053.

The product of its (nonzero) digits is 24385536, while the sum is 59.

It can be divided in two parts, 1238 and 6106334778, that added together give a palindrome (6106336016).

The spelling of 12386106334778 in words is "twelve trillion, three hundred eighty-six billion, one hundred six million, three hundred thirty-four thousand, seven hundred seventy-eight".