218082043041173 has 4 divisors (see below), whose sum is σ = 218116500630540. Its totient is φ = 218047585451808.

The previous prime is 218082043041157. The next prime is 218082043041193. The reversal of 218082043041173 is 371140340280812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138438591276049 + 79643451765124 = 11765993^2 + 8924318^2 .

It is a cyclic number.

It is not a de Polignac number, because 218082043041173 - 2⁴ = 218082043041157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218082043041103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17228785190 + ... + 17228797847.

It is an arithmetic number, because the mean of its divisors is an integer number (54529125157635).

Almost surely, 2^{218082043041173} is an apocalyptic number.

It is an amenable number.

218082043041173 is a deficient number, since it is larger than the sum of its proper divisors (34457589367).

218082043041173 is an equidigital number, since it uses as much as digits as its factorization.

218082043041173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34457589366.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 218082043041173 in words is "two hundred eighteen trillion, eighty-two billion, forty-three million, forty-one thousand, one hundred seventy-three".