8787328161 has 4 divisors (see below), whose sum is σ = 11716437552. Its totient is φ = 5858218772.

The previous prime is 8787328139. The next prime is 8787328189. The reversal of 8787328161 is 1618237878.

8787328161 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8787328161 - 2⁵ = 8787328129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8787328111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464554691 + ... + 1464554696.

It is an arithmetic number, because the mean of its divisors is an integer number (2929109388).

Almost surely, 2^8787328161 is an apocalyptic number.

It is an amenable number.

8787328161 is a deficient number, since it is larger than the sum of its proper divisors (2929109391).

8787328161 is a wasteful number, since it uses less digits than its factorization.

8787328161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929109390.

The product of its digits is 903168, while the sum is 51.

The square root of 8787328161 is about 93740.7497356406. The cubic root of 8787328161 is about 2063.5687785491.

The spelling of 8787328161 in words is "eight billion, seven hundred eighty-seven million, three hundred twenty-eight thousand, one hundred sixty-one".