9878088564 has 96 divisors (see below), whose sum is σ = 25820256000. Its totient is φ = 3265764480.

The previous prime is 9878088533. The next prime is 9878088607. The reversal of 9878088564 is 4658808789.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9907314 + ... + 9908310.

It is an arithmetic number, because the mean of its divisors is an integer number (268961000).

Almost surely, 2^9878088564 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 9878088564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12910128000).

9878088564 is an abundant number, since it is smaller than the sum of its proper divisors (15942167436).

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

9878088564 is a wasteful number, since it uses less digits than its factorization.

9878088564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 63.

The square root of 9878088564 is about 99388.5736088410. The cubic root of 9878088564 is about 2145.6438616796.

The spelling of 9878088564 in words is "nine billion, eight hundred seventy-eight million, eighty-eight thousand, five hundred sixty-four".