12856218374 has 16 divisors (see below), whose sum is σ = 19683548208. Its totient is φ = 6295472352.

The previous prime is 12856218343. The next prime is 12856218377. The reversal of 12856218374 is 47381265821.

12856218374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856218377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49832 + ... + 167915.

It is an arithmetic number, because the mean of its divisors is an integer number (1230221763).

Almost surely, 2^12856218374 is an apocalyptic number.

12856218374 is a deficient number, since it is larger than the sum of its proper divisors (6827329834).

12856218374 is a wasteful number, since it uses less digits than its factorization.

12856218374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218359.

The product of its digits is 645120, while the sum is 47.

The spelling of 12856218374 in words is "twelve billion, eight hundred fifty-six million, two hundred eighteen thousand, three hundred seventy-four".