9999888008 has 16 divisors (see below), whose sum is σ = 20454316560. Its totient is φ = 4545403600.

The previous prime is 9999888007. The next prime is 9999888071. The reversal of 9999888008 is 8008889999.

It is not an unprimeable number, because it can be changed into a prime (9999888007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56817458 + ... + 56817633.

It is an arithmetic number, because the mean of its divisors is an integer number (1278394785).

Almost surely, 2^9999888008 is an apocalyptic number.

It is an amenable number.

9999888008 is an abundant number, since it is smaller than the sum of its proper divisors (10454428552).

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

9999888008 is a wasteful number, since it uses less digits than its factorization.

9999888008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113635108 (or 113635104 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 68.

The square root of 9999888008 is about 99999.4400384322. The cubic root of 9999888008 is about 2154.4266473535.

The spelling of 9999888008 in words is "nine billion, nine hundred ninety-nine million, eight hundred eighty-eight thousand, eight".