218418274142 has 8 divisors (see below), whose sum is σ = 327631354176. Its totient is φ = 109207822752.

The previous prime is 218418274127. The next prime is 218418274159. The reversal of 218418274142 is 241472814812.

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

It is a junction number, because it is equal to n+sod(n) for n = 218418274093 and 218418274102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434318 + ... + 790865.

It is an arithmetic number, because the mean of its divisors is an integer number (40953919272).

Almost surely, 2^218418274142 is an apocalyptic number.

218418274142 is a deficient number, since it is larger than the sum of its proper divisors (109213080034).

218418274142 is a wasteful number, since it uses less digits than its factorization.

218418274142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314322.

The product of its digits is 229376, while the sum is 44.

The spelling of 218418274142 in words is "two hundred eighteen billion, four hundred eighteen million, two hundred seventy-four thousand, one hundred forty-two".