9988888718592 has 864 divisors, whose sum is σ = 35711492544000. Its totient is φ = 2678117105664.

The previous prime is 9988888718587. The next prime is 9988888718693. The reversal of 9988888718592 is 2958178888899.

9988888718592 is a `hidden beast` number, since 9 + 9 + 8 + 8 + 8 + 8 + 8 + 7 + 1 + 8 + 592 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 963336384 + ... + 963346752.

It is an arithmetic number, because the mean of its divisors is an integer number (41332746000).

Almost surely, 2^{9988888718592} is an apocalyptic number.

9988888718592 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9988888718592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17855746272000).

9988888718592 is an abundant number, since it is smaller than the sum of its proper divisors (25722603825408).

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

9988888718592 is a wasteful number, since it uses less digits than its factorization.

9988888718592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488 (or 10457 counting only the distinct ones).

The product of its digits is 13377208320, while the sum is 90.

The spelling of 9988888718592 in words is "nine trillion, nine hundred eighty-eight billion, eight hundred eighty-eight million, seven hundred eighteen thousand, five hundred ninety-two".