8173265617 has 4 divisors (see below), whose sum is σ = 8916289776. Its totient is φ = 7430241460.

The previous prime is 8173265543. The next prime is 8173265623. The reversal of 8173265617 is 7165623718.

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 8173265617 - 2²³ = 8164877009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8173265677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371512063 + ... + 371512084.

It is an arithmetic number, because the mean of its divisors is an integer number (2229072444).

Almost surely, 2^8173265617 is an apocalyptic number.

It is an amenable number.

8173265617 is a deficient number, since it is larger than the sum of its proper divisors (743024159).

8173265617 is a wasteful number, since it uses less digits than its factorization.

8173265617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743024158.

The product of its digits is 423360, while the sum is 46.

The square root of 8173265617 is about 90406.1149314580. The cubic root of 8173265617 is about 2014.3357983410.

The spelling of 8173265617 in words is "eight billion, one hundred seventy-three million, two hundred sixty-five thousand, six hundred seventeen".