9689777565 has 16 divisors (see below), whose sum is σ = 16696232448. Its totient is φ = 4770351936.

The previous prime is 9689777549. The next prime is 9689777609. The reversal of 9689777565 is 5657779869.

It is not a de Polignac number, because 9689777565 - 2⁴ = 9689777549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9689777565.

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, 24845389 + ... + 24845778.

It is an arithmetic number, because the mean of its divisors is an integer number (1043514528).

Almost surely, 2^9689777565 is an apocalyptic number.

It is an amenable number.

9689777565 is a deficient number, since it is larger than the sum of its proper divisors (7006454883).

9689777565 is a wasteful number, since it uses less digits than its factorization.

9689777565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49691188.

The product of its digits is 200037600, while the sum is 69.

The square root of 9689777565 is about 98436.6677869583. The cubic root of 9689777565 is about 2131.9217937191.

The spelling of 9689777565 in words is "nine billion, six hundred eighty-nine million, seven hundred seventy-seven thousand, five hundred sixty-five".