218242058186 has 8 divisors (see below), whose sum is σ = 334976182464. Its totient is φ = 106583330700.

The previous prime is 218242058137. The next prime is 218242058191. The reversal of 218242058186 is 681850242812.

218242058186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×218242058186² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 218242058186.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1268849090 + ... + 1268849261.

It is an arithmetic number, because the mean of its divisors is an integer number (41872022808).

Almost surely, 2^218242058186 is an apocalyptic number.

218242058186 is a deficient number, since it is larger than the sum of its proper divisors (116734124278).

218242058186 is a wasteful number, since it uses less digits than its factorization.

218242058186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537698396.

The product of its (nonzero) digits is 491520, while the sum is 47.

The spelling of 218242058186 in words is "two hundred eighteen billion, two hundred forty-two million, fifty-eight thousand, one hundred eighty-six".