9917804342488 has 96 divisors (see below), whose sum is σ = 22704187680000. Its totient is φ = 3971132028864.

The previous prime is 9917804342437. The next prime is 9917804342527. The reversal of 9917804342488 is 8842434087199.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299263 + ... + 4463761.

It is an arithmetic number, because the mean of its divisors is an integer number (236501955000).

Almost surely, 2^{9917804342488} 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 9917804342488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11352093840000).

9917804342488 is an abundant number, since it is smaller than the sum of its proper divisors (12786383337512).

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

9917804342488 is a wasteful number, since it uses less digits than its factorization.

9917804342488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164621 (or 4164574 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 67.

The spelling of 9917804342488 in words is "nine trillion, nine hundred seventeen billion, eight hundred four million, three hundred forty-two thousand, four hundred eighty-eight".