8787765028 has 96 divisors (see below), whose sum is σ = 18316247040. Its totient is φ = 3611537280.

The previous prime is 8787765013. The next prime is 8787765029. The reversal of 8787765028 is 8205677878.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8787765029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18817251 + ... + 18817717.

It is an arithmetic number, because the mean of its divisors is an integer number (190794240).

Almost surely, 2^8787765028 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 8787765028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9158123520).

8787765028 is an abundant number, since it is smaller than the sum of its proper divisors (9528482012).

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

8787765028 is a wasteful number, since it uses less digits than its factorization.

8787765028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 58.

The square root of 8787765028 is about 93743.0798939314. The cubic root of 8787765028 is about 2063.6029751462.

The spelling of 8787765028 in words is "eight billion, seven hundred eighty-seven million, seven hundred sixty-five thousand, twenty-eight".