9887549228928 has 768 divisors, whose sum is σ = 34401540326400. Its totient is φ = 2664871723008.

The previous prime is 9887549228927. The next prime is 9887549228929. The reversal of 9887549228928 is 8298229457889.

9887549228928 is a `hidden beast` number, since 9 + 8 + 87 + 5 + 492 + 28 + 9 + 28 = 666.

9887549228928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9887549228927) and next prime (9887549228929).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887549228927) 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, 11274286026 + ... + 11274286902.

It is an arithmetic number, because the mean of its divisors is an integer number (44793672300).

Almost surely, 2^{9887549228928} 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 9887549228928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17200770163200).

9887549228928 is an abundant number, since it is smaller than the sum of its proper divisors (24513991097472).

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

9887549228928 is a wasteful number, since it uses less digits than its factorization.

9887549228928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699 (or 1684 counting only the distinct ones).

The product of its digits is 3344302080, while the sum is 81.

The spelling of 9887549228928 in words is "nine trillion, eight hundred eighty-seven billion, five hundred forty-nine million, two hundred twenty-eight thousand, nine hundred twenty-eight".