219684482811 has 12 divisors (see below), whose sum is σ = 317579822560. Its totient is φ = 146337341040.

The previous prime is 219684482777. The next prime is 219684482833. The reversal of 219684482811 is 118284486912.

219684482811 is a `hidden beast` number, since 2 + 1 + 9 + 6 + 84 + 482 + 81 + 1 = 666.

It is not a de Polignac number, because 219684482811 - 2⁷ = 219684482683 is a prime.

It is a super-2 number, since 2×219684482811² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219684482111) 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 11 ways as a sum of consecutive naturals, for example, 9903376 + ... + 9925533.

Almost surely, 2^219684482811 is an apocalyptic number.

219684482811 is a deficient number, since it is larger than the sum of its proper divisors (97895339749).

219684482811 is a wasteful number, since it uses less digits than its factorization.

219684482811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19830146 (or 19830143 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The spelling of 219684482811 in words is "two hundred nineteen billion, six hundred eighty-four million, four hundred eighty-two thousand, eight hundred eleven".