9689556765 has 32 divisors (see below), whose sum is σ = 17742827520. Its totient is φ = 4423316544.

The previous prime is 9689556739. The next prime is 9689556791. The reversal of 9689556765 is 5676559869.

It is an interprime number because it is at equal distance from previous prime (9689556739) and next prime (9689556791).

It is not a de Polignac number, because 9689556765 - 2¹⁰ = 9689555741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9689556696 and 9689556705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11322 + ... + 139668.

It is an arithmetic number, because the mean of its divisors is an integer number (554463360).

Almost surely, 2^9689556765 is an apocalyptic number.

It is an amenable number.

9689556765 is a deficient number, since it is larger than the sum of its proper divisors (8053270755).

9689556765 is a wasteful number, since it uses less digits than its factorization.

9689556765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129081.

The product of its digits is 122472000, while the sum is 66.

The square root of 9689556765 is about 98435.5462472780. The cubic root of 9689556765 is about 2131.9056002993.

The spelling of 9689556765 in words is "nine billion, six hundred eighty-nine million, five hundred fifty-six thousand, seven hundred sixty-five".