large integer conversion from python to r

If I define the following python function in a file

def my_function():
  x = 1920272742080
  return x

I then get the following output if I run in Rstudio the python function.

> my_function()
[1] -1

What am I doing wrong here as you would expect 1920272742080 in stead of -1.
If I make a second function my_function2()

def my_function2():
  x = 19
  return x

I then get the output I would expect

> my_function2()
[1] 19
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Handling of long Python integers is an open issue with reticulate

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