216443986234 has 16 divisors (see below), whose sum is σ = 371330756928. Its totient is φ = 92690727552.

The previous prime is 216443986223. The next prime is 216443986237. The reversal of 216443986234 is 432689344612.

It is not an unprimeable number, because it can be changed into a prime (216443986237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5896119 + ... + 5932714.

It is an arithmetic number, because the mean of its divisors is an integer number (23208172308).

Almost surely, 2^216443986234 is an apocalyptic number.

216443986234 is a deficient number, since it is larger than the sum of its proper divisors (154886770694).

216443986234 is a wasteful number, since it uses less digits than its factorization.

216443986234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830149.

The product of its digits is 5971968, while the sum is 52.

The spelling of 216443986234 in words is "two hundred sixteen billion, four hundred forty-three million, nine hundred eighty-six thousand, two hundred thirty-four".