13218236834 has 16 divisors (see below), whose sum is σ = 21631721760. Its totient is φ = 6007767360.

The previous prime is 13218236833. The next prime is 13218236849. The reversal of 13218236834 is 43863281231.

13218236834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13218236791 and 13218236800.

It is not an unprimeable number, because it can be changed into a prime (13218236833) 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, 359162 + ... + 394250.

It is an arithmetic number, because the mean of its divisors is an integer number (1351982610).

Almost surely, 2^13218236834 is an apocalyptic number.

13218236834 is a deficient number, since it is larger than the sum of its proper divisors (8413484926).

13218236834 is a wasteful number, since it uses less digits than its factorization.

13218236834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52225.

The product of its digits is 165888, while the sum is 41.

It can be divided in two parts, 13218 and 236834, that added together give a palindrome (250052).

The spelling of 13218236834 in words is "thirteen billion, two hundred eighteen million, two hundred thirty-six thousand, eight hundred thirty-four".