8272176565 has 4 divisors (see below), whose sum is σ = 9926611884. Its totient is φ = 6617741248.

The previous prime is 8272176529. The next prime is 8272176599. The reversal of 8272176565 is 5656712728.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6540118641 + 1732057924 = 80871^2 + 41618^2 .

It is a cyclic number.

It is not a de Polignac number, because 8272176565 - 2²⁹ = 7735305653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827217652 + ... + 827217661.

It is an arithmetic number, because the mean of its divisors is an integer number (2481652971).

Almost surely, 2^8272176565 is an apocalyptic number.

It is an amenable number.

8272176565 is a deficient number, since it is larger than the sum of its proper divisors (1654435319).

8272176565 is a wasteful number, since it uses less digits than its factorization.

8272176565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654435318.

The product of its digits is 1411200, while the sum is 49.

The square root of 8272176565 is about 90951.5066670146. The cubic root of 8272176565 is about 2022.4289121172.

The spelling of 8272176565 in words is "eight billion, two hundred seventy-two million, one hundred seventy-six thousand, five hundred sixty-five".