9918865088 has 28 divisors (see below), whose sum is σ = 21472090152. Its totient is φ = 4508574720.

The previous prime is 9918865081. The next prime is 9918865109. The reversal of 9918865088 is 8805688199.

It is a self number, because there is not a number n which added to its sum of digits gives 9918865088.

It is not an unprimeable number, because it can be changed into a prime (9918865081) 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, 7043945 + ... + 7045352.

Almost surely, 2^9918865088 is an apocalyptic number.

It is an amenable number.

9918865088 is an abundant number, since it is smaller than the sum of its proper divisors (11553225064).

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

9918865088 is a wasteful number, since it uses less digits than its factorization.

9918865088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089320 (or 14089310 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 62.

The square root of 9918865088 is about 99593.4992256021. The cubic root of 9918865088 is about 2148.5921981248.

The spelling of 9918865088 in words is "nine billion, nine hundred eighteen million, eight hundred sixty-five thousand, eighty-eight".