8999000009998 has 4 divisors (see below), whose sum is σ = 13498500015000. Its totient is φ = 4499500004998.

The previous prime is 8999000009981. The next prime is 8999000010031.

8999000009998 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2249750002498 + ... + 2249750002501.

It is an arithmetic number, because the mean of its divisors is an integer number (3374625003750).

Almost surely, 2^{8999000009998} is an apocalyptic number.

8999000009998 is a deficient number, since it is larger than the sum of its proper divisors (4499500005002).

8999000009998 is a wasteful number, since it uses less digits than its factorization.

8999000009998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499500005001.

The product of its (nonzero) digits is 34012224, while the sum is 70.

It can be divided in two parts, 899900000 and 9998, that added together give a palindrome (899909998).

The spelling of 8999000009998 in words is "eight trillion, nine hundred ninety-nine billion, nine thousand, nine hundred ninety-eight".