8782728765 has 16 divisors (see below), whose sum is σ = 14059485888. Its totient is φ = 4681748736.

The previous prime is 8782728763. The next prime is 8782728767. The reversal of 8782728765 is 5678272878.

It is an interprime number because it is at equal distance from previous prime (8782728763) and next prime (8782728767).

It is not a de Polignac number, because 8782728765 - 2¹ = 8782728763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8782728699 and 8782728708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8782728763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117532 + ... + 177141.

It is an arithmetic number, because the mean of its divisors is an integer number (878717868).

Almost surely, 2^8782728765 is an apocalyptic number.

It is an amenable number.

8782728765 is a deficient number, since it is larger than the sum of its proper divisors (5276757123).

8782728765 is a wasteful number, since it uses less digits than its factorization.

8782728765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296668.

The product of its digits is 21073920, while the sum is 60.

The square root of 8782728765 is about 93716.2139920302. The cubic root of 8782728765 is about 2063.2086832609.

The spelling of 8782728765 in words is "eight billion, seven hundred eighty-two million, seven hundred twenty-eight thousand, seven hundred sixty-five".