9664933769 has 8 divisors (see below), whose sum is σ = 9813358152. Its totient is φ = 9516942720.

The previous prime is 9664933741. The next prime is 9664933787. The reversal of 9664933769 is 9673394669.

It can be written as a sum of positive squares in 4 ways, for example, as 253605625 + 9411328144 = 15925^2 + 97012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9664933769 is a prime.

It is a super-2 number, since 2×9664933769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9664933469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63242 + ... + 152739.

It is an arithmetic number, because the mean of its divisors is an integer number (1226669769).

Almost surely, 2^9664933769 is an apocalyptic number.

It is an amenable number.

9664933769 is a deficient number, since it is larger than the sum of its proper divisors (148424383).

9664933769 is a wasteful number, since it uses less digits than its factorization.

9664933769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216667.

The product of its digits is 39680928, while the sum is 62.

The square root of 9664933769 is about 98310.3950200588. The cubic root of 9664933769 is about 2130.0982100381.

The spelling of 9664933769 in words is "nine billion, six hundred sixty-four million, nine hundred thirty-three thousand, seven hundred sixty-nine".