9988888853 has 8 divisors (see below), whose sum is σ = 10452424248. Its totient is φ = 9535541184.

The previous prime is 9988888837. The next prime is 9988888909. The reversal of 9988888853 is 3588888899.

It can be written as a sum of positive squares in 4 ways, for example, as 5152799089 + 4836089764 = 71783^2 + 69542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9988888853 - 2⁴ = 9988888837 is a prime.

It is a Duffinian number.

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 (9988888823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2544926 + ... + 2548847.

It is an arithmetic number, because the mean of its divisors is an integer number (1306553031).

Almost surely, 2^9988888853 is an apocalyptic number.

It is an amenable number.

9988888853 is a deficient number, since it is larger than the sum of its proper divisors (463535395).

9988888853 is a wasteful number, since it uses less digits than its factorization.

9988888853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093863.

The product of its digits is 318504960, while the sum is 74.

The square root of 9988888853 is about 99944.4288242221. The cubic root of 9988888853 is about 2153.6364529631.

The spelling of 9988888853 in words is "nine billion, nine hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-three".