The square root of 84151854658624 is 9173432.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 84151854658624.
It is an unprimeable number.
Almost surely, 284151854658624 is an apocalyptic number.
84151854658624 is the 9173432-nd square number.
It is an amenable number.
84151854658624 is an frugal number, since it uses more digits than its factorization.
84151854658624 is an evil number, because the sum of its binary digits is even.
The spelling of 84151854658624 in words is "eighty-four trillion, one hundred fifty-one billion, eight hundred fifty-four million, six hundred fifty-eight thousand, six hundred twenty-four".