218982141844 has 6 divisors (see below), whose sum is σ = 383218748234. Its totient is φ = 109491070920.

The previous prime is 218982141839. The next prime is 218982141857. The reversal of 218982141844 is 448141289812.

It can be written as a sum of positive squares in only one way, i.e., 129902576400 + 89079565444 = 360420^2 + 298462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 218982141791 and 218982141800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27372767727 + ... + 27372767734.

Almost surely, 2^218982141844 is an apocalyptic number.

It is an amenable number.

218982141844 is a deficient number, since it is larger than the sum of its proper divisors (164236606390).

218982141844 is a wasteful number, since it uses less digits than its factorization.

218982141844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54745535465 (or 54745535463 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 52.

The spelling of 218982141844 in words is "two hundred eighteen billion, nine hundred eighty-two million, one hundred forty-one thousand, eight hundred forty-four".