218431022162854 has 8 divisors (see below), whose sum is σ = 327886216154928. Its totient is φ = 109135616777880.

The previous prime is 218431022162807. The next prime is 218431022162891. The reversal of 218431022162854 is 458261220134812.

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

It is a super-2 number, since 2×218431022162854² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 218431022162798 and 218431022162807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39947148357 + ... + 39947153824.

It is an arithmetic number, because the mean of its divisors is an integer number (40985777019366).

Almost surely, 2^{218431022162854} is an apocalyptic number.

218431022162854 is a deficient number, since it is larger than the sum of its proper divisors (109455193992074).

218431022162854 is a wasteful number, since it uses less digits than its factorization.

218431022162854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79894303550.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 218431022162854 in words is "two hundred eighteen trillion, four hundred thirty-one billion, twenty-two million, one hundred sixty-two thousand, eight hundred fifty-four".