9999888584488 has 128 divisors (see below), whose sum is σ = 22122663390720. Its totient is φ = 4186181468160.

The previous prime is 9999888584473. The next prime is 9999888584507. The reversal of 9999888584488 is 8844858889999.

It is a self number, because there is not a number n which added to its sum of digits gives 9999888584488.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469181320 + ... + 469202632.

It is an arithmetic number, because the mean of its divisors is an integer number (172833307740).

Almost surely, 2^{9999888584488} 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 9999888584488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11061331695360).

9999888584488 is an abundant number, since it is smaller than the sum of its proper divisors (12122774806232).

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

9999888584488 is a wasteful number, since it uses less digits than its factorization.

9999888584488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28067 (or 28063 counting only the distinct ones).

The product of its digits is 137594142720, while the sum is 97.

The spelling of 9999888584488 in words is "nine trillion, nine hundred ninety-nine billion, eight hundred eighty-eight million, five hundred eighty-four thousand, four hundred eighty-eight".