title: What's the largest value an NSNumber can store?
body: <p>What's the largest value an NSNumber can store?</p>
  
  <pre><code>// ok
      NSNumber *value = @(1 &lt;&lt; 31); 
  
  // gives compiler error, so max NSNumber is 32-bit uint?
      NSNumber *value = @(1 &lt;&lt; 32); 
  </code></pre>