218034644430 has 64 divisors (see below), whose sum is σ = 524846081088. Its totient is φ = 57969177600.

The previous prime is 218034644357. The next prime is 218034644447. The reversal of 218034644430 is 34446430812.

218034644430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14362324 + ... + 14377496.

It is an arithmetic number, because the mean of its divisors is an integer number (8200720017).

Almost surely, 2^218034644430 is an apocalyptic number.

218034644430 is an abundant number, since it is smaller than the sum of its proper divisors (306811436658).

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

218034644430 is a wasteful number, since it uses less digits than its factorization.

218034644430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16581.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 218034644430 in words is "two hundred eighteen billion, thirty-four million, six hundred forty-four thousand, four hundred thirty".