51234349716 is a `hidden beast` number, since 5 + 1 + 234 + 349 + 71 + 6 = 666.
It is a congruent number.
It is an unprimeable number.
Almost surely, 251234349716 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 51234349716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73582684560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51234349716 is a wasteful number, since it uses less digits than its factorization.
51234349716 is an odious number, because the sum of its binary digits is odd.
The spelling of 51234349716 in words is "fifty-one billion, two hundred thirty-four million, three hundred forty-nine thousand, seven hundred sixteen".