9990884880999 has 48 divisors (see below), whose sum is σ = 16673448957984. Its totient is φ = 5697476505600.

The previous prime is 9990884880971. The next prime is 9990884881037.

9990884880999 is nontrivially palindromic in base 10.

9990884880999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9990884880999 - 2¹⁹ = 9990884356711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990884380999) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6014239 + ... + 7493519.

It is an arithmetic number, because the mean of its divisors is an integer number (347363519958).

Almost surely, 2^{9990884880999} is an apocalyptic number.

9990884880999 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

9990884880999 is a deficient number, since it is larger than the sum of its proper divisors (6682564076985).

9990884880999 is a wasteful number, since it uses less digits than its factorization.

9990884880999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483328 (or 1483325 counting only the distinct ones).

The product of its (nonzero) digits is 8707129344, while the sum is 90.

The spelling of 9990884880999 in words is "nine trillion, nine hundred ninety billion, eight hundred eighty-four million, eight hundred eighty thousand, nine hundred ninety-nine".