9667777669 has 12 divisors (see below), whose sum is σ = 10634487948. Its totient is φ = 8782336640.

The previous prime is 9667777661. The next prime is 9667777673.

9667777669 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 7874255169 + 1793522500 = 88737^2 + 42350^2 .

It is not a de Polignac number, because 9667777669 - 2³ = 9667777661 is a prime.

It is a super-2 number, since 2×9667777669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9667777598 and 9667777607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9667777661) 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 11 ways as a sum of consecutive naturals, for example, 137037 + ... + 195229.

It is an arithmetic number, because the mean of its divisors is an integer number (886207329).

Almost surely, 2^9667777669 is an apocalyptic number.

It is an amenable number.

9667777669 is a deficient number, since it is larger than the sum of its proper divisors (966710279).

9667777669 is a wasteful number, since it uses less digits than its factorization.

9667777669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59588 (or 59577 counting only the distinct ones).

The product of its digits is 252047376, while the sum is 70.

The square root of 9667777669 is about 98324.8578386971. The cubic root of 9667777669 is about 2130.3071161854.

The spelling of 9667777669 in words is "nine billion, six hundred sixty-seven million, seven hundred seventy-seven thousand, six hundred sixty-nine".