999998881110 has 48 divisors (see below), whose sum is σ = 2610113871456. Its totient is φ = 265628749824.

The previous prime is 999998881099. The next prime is 999998881111. The reversal of 999998881110 is 11188899999.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999998881111) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 21593794 + ... + 21640053.

It is an arithmetic number, because the mean of its divisors is an integer number (54377372322).

Almost surely, 2^999998881110 is an apocalyptic number.

999998881110 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

999998881110 is an abundant number, since it is smaller than the sum of its proper divisors (1610114990346).

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

999998881110 is a wasteful number, since it uses less digits than its factorization.

999998881110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43234117 (or 43234114 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 72.

The spelling of 999998881110 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, eight hundred eighty-one thousand, one hundred ten".