It is a happy number.
81364877846318 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
Almost surely, 281364877846318 is an apocalyptic number.
81364877846318 is a wasteful number, since it uses less digits than its factorization.
81364877846318 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3698403538482.
The spelling of 81364877846318 in words is "eighty-one trillion, three hundred sixty-four billion, eight hundred seventy-seven million, eight hundred forty-six thousand, three hundred eighteen".