7869316565 has 16 divisors (see below), whose sum is σ = 10331193600. Its totient is φ = 5706726720.

The previous prime is 7869316537. The next prime is 7869316597. The reversal of 7869316565 is 5656139687.

It is a happy number.

It is not a de Polignac number, because 7869316565 - 2⁶ = 7869316501 is a prime.

It is a super-2 number, since 2×7869316565² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7869316565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185789 + ... + 224178.

It is an arithmetic number, because the mean of its divisors is an integer number (645699600).

Almost surely, 2^7869316565 is an apocalyptic number.

It is an amenable number.

7869316565 is a deficient number, since it is larger than the sum of its proper divisors (2461877035).

7869316565 is a wasteful number, since it uses less digits than its factorization.

7869316565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410332.

The product of its digits is 8164800, while the sum is 56.

The square root of 7869316565 is about 88709.1684382173. The cubic root of 7869316565 is about 1989.0498704968.

The spelling of 7869316565 in words is "seven billion, eight hundred sixty-nine million, three hundred sixteen thousand, five hundred sixty-five".