1945487980800 is a `hidden beast` number, since 1 + 9 + 4 + 548 + 7 + 9 + 8 + 0 + 80 + 0 = 666.
It is an unprimeable number.
Almost surely, 21945487980800 is an apocalyptic number.
1945487980800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1945487980800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4571454074880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1945487980800 is a wasteful number, since it uses less digits than its factorization.
1945487980800 is an evil number, because the sum of its binary digits is even.
The spelling of 1945487980800 in words is "one trillion, nine hundred forty-five billion, four hundred eighty-seven million, nine hundred eighty thousand, eight hundred".