218000382084885 has 64 divisors (see below), whose sum is σ = 362451904856064. Its totient is φ = 111766494816000.

The previous prime is 218000382084871. The next prime is 218000382084923. The reversal of 218000382084885 is 588480283000812.

It is a happy number.

It is not a de Polignac number, because 218000382084885 - 2⁵ = 218000382084853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2204490912 + ... + 2204589798.

It is an arithmetic number, because the mean of its divisors is an integer number (5663311013376).

Almost surely, 2^{218000382084885} is an apocalyptic number.

It is an amenable number.

218000382084885 is a deficient number, since it is larger than the sum of its proper divisors (144451522771179).

218000382084885 is a wasteful number, since it uses less digits than its factorization.

218000382084885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130474.

The product of its (nonzero) digits is 7864320, while the sum is 57.

The spelling of 218000382084885 in words is "two hundred eighteen trillion, three hundred eighty-two million, eighty-four thousand, eight hundred eighty-five".