7971108265 has 4 divisors (see below), whose sum is σ = 9565329924. Its totient is φ = 6376886608.

The previous prime is 7971108259. The next prime is 7971108289. The reversal of 7971108265 is 5628011797.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5628011797 = 7193 ⋅782429.

It can be written as a sum of positive squares in 2 ways, for example, as 5577550489 + 2393557776 = 74683^2 + 48924^2 .

It is a cyclic number.

It is not a de Polignac number, because 7971108265 - 2¹⁷ = 7970977193 is a prime.

It is a Duffinian 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, 797110822 + ... + 797110831.

It is an arithmetic number, because the mean of its divisors is an integer number (2391332481).

Almost surely, 2^7971108265 is an apocalyptic number.

It is an amenable number.

7971108265 is a deficient number, since it is larger than the sum of its proper divisors (1594221659).

7971108265 is a wasteful number, since it uses less digits than its factorization.

7971108265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594221658.

The product of its (nonzero) digits is 211680, while the sum is 46.

The square root of 7971108265 is about 89281.0633057201. The cubic root of 7971108265 is about 1997.5894512112.

The spelling of 7971108265 in words is "seven billion, nine hundred seventy-one million, one hundred eight thousand, two hundred sixty-five".