It is a happy number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 280799793398620 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80799793398620 is a wasteful number, since it uses less digits than its factorization.
80799793398620 is an odious number, because the sum of its binary digits is odd.
The spelling of 80799793398620 in words is "eighty trillion, seven hundred ninety-nine billion, seven hundred ninety-three million, three hundred ninety-eight thousand, six hundred twenty".