13218399194 has 64 divisors (see below), whose sum is σ = 27480563712. Its totient is φ = 4600497600.

The previous prime is 13218399167. The next prime is 13218399223. The reversal of 13218399194 is 49199381231.

13218399194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 44432 + ... + 168555.

It is an arithmetic number, because the mean of its divisors is an integer number (429383808).

Almost surely, 2^13218399194 is an apocalyptic number.

13218399194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13218399194 is an abundant number, since it is smaller than the sum of its proper divisors (14262164518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13218399194 is a wasteful number, since it uses less digits than its factorization.

13218399194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213051.

The product of its digits is 419904, while the sum is 50.

The spelling of 13218399194 in words is "thirteen billion, two hundred eighteen million, three hundred ninety-nine thousand, one hundred ninety-four".