998888899999 has 2 divisors, whose sum is σ = 998888900000. Its totient is φ = 998888899998.

The previous prime is 998888899991. The next prime is 998888900021. The reversal of 998888899999 is 999998888899.

998888899999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (999998888899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998888899999 - 2³ = 998888899991 is a prime.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 998888899898 and 998888899907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998888899991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499444449999 + 499444450000.

It is an arithmetic number, because the mean of its divisors is an integer number (499444450000).

Almost surely, 2^998888899999 is an apocalyptic number.

998888899999 is a deficient number, since it is larger than the sum of its proper divisors (1).

998888899999 is an equidigital number, since it uses as much as digits as its factorization.

998888899999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156728328192, while the sum is 103.

The spelling of 998888899999 in words is "nine hundred ninety-eight billion, eight hundred eighty-eight million, eight hundred ninety-nine thousand, nine hundred ninety-nine".