9623878784 has 192 divisors, whose sum is σ = 22431923640. Its totient is φ = 4084826112.

The previous prime is 9623878777. The next prime is 9623878853. The reversal of 9623878784 is 4878783269.

It can be written as a sum of positive squares in 4 ways, for example, as 6712197184 + 2911681600 = 81928^2 + 53960^2 .

Its product of digits (32514048) is a multiple of the sum of its prime divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22225832 + ... + 22226264.

Almost surely, 2^9623878784 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 9623878784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11215961820).

9623878784 is an abundant number, since it is smaller than the sum of its proper divisors (12808044856).

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

9623878784 is a wasteful number, since it uses less digits than its factorization.

9623878784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 504 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 62.

The square root of 9623878784 is about 98101.3699394662. The cubic root of 9623878784 is about 2127.0778317289.

The spelling of 9623878784 in words is "nine billion, six hundred twenty-three million, eight hundred seventy-eight thousand, seven hundred eighty-four".