218118889024 has 21 divisors (see below), whose sum is σ = 432837084667. Its totient is φ = 109057576384.

The previous prime is 218118889019. The next prime is 218118889031. The reversal of 218118889024 is 420988811812.

The square root of 218118889024 is 467032.

It is a perfect power (a square), and thus also a powerful number.

218118889024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3707067 + ... + 3765445.

Almost surely, 2^218118889024 is an apocalyptic number.

218118889024 is the 467032-nd square number.

It is an amenable number.

218118889024 is a deficient number, since it is larger than the sum of its proper divisors (214718195643).

218118889024 is an frugal number, since it uses more digits than its factorization.

218118889024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116770 (or 58381 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 52.

The spelling of 218118889024 in words is "two hundred eighteen billion, one hundred eighteen million, eight hundred eighty-nine thousand, twenty-four".