It is a cyclic number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 28213072136205 is an apocalyptic number.
8213072136205 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
8213072136205 is a wasteful number, since it uses less digits than its factorization.
8213072136205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 996127728.
The spelling of 8213072136205 in words is "eight trillion, two hundred thirteen billion, seventy-two million, one hundred thirty-six thousand, two hundred five".