It is a tau number, because it is divible by the number of its divisors (768).
It is a nialpdrome in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 999999999744000.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2999999999744000 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 999999999744000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690371810167040).
999999999744000 is an abundant number, since it is smaller than the sum of its proper divisors (2380743620590080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
999999999744000 is a wasteful number, since it uses less digits than its factorization.
999999999744000 is an odious number, because the sum of its binary digits is odd.
The spelling of 999999999744000 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, seven hundred forty-four thousand".