9699779969 has 8 divisors (see below), whose sum is σ = 10584333408. Its totient is φ = 8815685760.

The previous prime is 9699779941. The next prime is 9699779983.

It is a happy number.

9699779969 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 9699779969 - 2¹² = 9699775873 is a prime.

It is a super-2 number, since 2×9699779969² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9699779893 and 9699779902.

It is not an unprimeable number, because it can be changed into a prime (9699779909) 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, 69872 + ... + 155825.

It is an arithmetic number, because the mean of its divisors is an integer number (1323041676).

Almost surely, 2^9699779969 is an apocalyptic number.

It is an amenable number.

9699779969 is a deficient number, since it is larger than the sum of its proper divisors (884553439).

9699779969 is a wasteful number, since it uses less digits than its factorization.

9699779969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229615.

The product of its digits is 937461924, while the sum is 80.

The square root of 9699779969 is about 98487.4609734661. The cubic root of 9699779969 is about 2132.6551098243.

The spelling of 9699779969 in words is "nine billion, six hundred ninety-nine million, seven hundred seventy-nine thousand, nine hundred sixty-nine".