218223926082 has 54 divisors (see below), whose sum is σ = 477900598617. Its totient is φ = 71967696912.

The previous prime is 218223926077. The next prime is 218223926083. The reversal of 218223926082 is 280629322812.

218223926082 is a `hidden beast` number, since 2 + 1 + 8 + 2 + 2 + 39 + 2 + 608 + 2 = 666.

218223926082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 217994676201 + 229249881 = 466899^2 + 15141^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=330321.

It is not an unprimeable number, because it can be changed into a prime (218223926083) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 204137844 + ... + 204138912.

Almost surely, 2^218223926082 is an apocalyptic number.

218223926082 is an abundant number, since it is smaller than the sum of its proper divisors (259676672535).

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

218223926082 is an equidigital number, since it uses as much as digits as its factorization.

218223926082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 218223926082 in words is "two hundred eighteen billion, two hundred twenty-three million, nine hundred twenty-six thousand, eighty-two".