51259095108 is a `hidden beast` number, since 5 + 1 + 2 + 590 + 9 + 51 + 0 + 8 = 666.
It is an unprimeable number.
Almost surely, 251259095108 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 51259095108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71591352000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51259095108 is a wasteful number, since it uses less digits than its factorization.
51259095108 is an evil number, because the sum of its binary digits is even.
The spelling of 51259095108 in words is "fifty-one billion, two hundred fifty-nine million, ninety-five thousand, one hundred eight".