9669863869 has 4 divisors (see below), whose sum is σ = 9685486240. Its totient is φ = 9654241500.

The previous prime is 9669863843. The next prime is 9669863911. The reversal of 9669863869 is 9683689669.

9669863869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9669863869 - 2⁵ = 9669863837 is a prime.

It is a super-2 number, since 2×9669863869² (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 = 9669863798 and 9669863807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9669863369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7810257 + ... + 7811494.

It is an arithmetic number, because the mean of its divisors is an integer number (2421371560).

Almost surely, 2^9669863869 is an apocalyptic number.

It is an amenable number.

9669863869 is a deficient number, since it is larger than the sum of its proper divisors (15622371).

9669863869 is a wasteful number, since it uses less digits than its factorization.

9669863869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15622370.

The product of its digits is 181398528, while the sum is 70.

The square root of 9669863869 is about 98335.4659774387. The cubic root of 9669863869 is about 2130.4603374400.

The spelling of 9669863869 in words is "nine billion, six hundred sixty-nine million, eight hundred sixty-three thousand, eight hundred sixty-nine".