9888855900 has 288 divisors, whose sum is σ = 37550929920. Its totient is φ = 1946592000.

The previous prime is 9888855871. The next prime is 9888855901. The reversal of 9888855900 is 95588889.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9888855901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 427635 + ... + 450165.

Almost surely, 2^9888855900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9888855900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18775464960).

9888855900 is an abundant number, since it is smaller than the sum of its proper divisors (27662074020).

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

9888855900 is a wasteful number, since it uses less digits than its factorization.

9888855900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585 (or 22578 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 60.

The square root of 9888855900 is about 99442.7267325268. The cubic root of 9888855900 is about 2146.4231784172.

The spelling of 9888855900 in words is "nine billion, eight hundred eighty-eight million, eight hundred fifty-five thousand, nine hundred".