9999994000000 has 224 divisors, whose sum is σ = 25481345709600. Its totient is φ = 3906940800000.

The previous prime is 9999993999973. The next prime is 9999994000001. The reversal of 9999994000000 is 4999999.

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 9999994000000.

It is not an unprimeable number, because it can be changed into a prime (9999994000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 85941861 + ... + 86058139.

Almost surely, 2^{9999994000000} 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 9999994000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12740672854800).

9999994000000 is an abundant number, since it is smaller than the sum of its proper divisors (15481351709600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999994000000 is an frugal number, since it uses more digits than its factorization.

9999994000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116366 (or 116329 counting only the distinct ones).

The product of its (nonzero) digits is 2125764, while the sum is 58.

Adding to 9999994000000 its reverse (4999999), we get a palindrome (9999998999999).

It can be divided in two parts, 9 and 999994000000, that added together give a square (999994000009 = 999997²).

The spelling of 9999994000000 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-four million", and thus it is an aban number.