9686663424 has 144 divisors (see below), whose sum is σ = 29131905600. Its totient is φ = 3174027264.

The previous prime is 9686663419. The next prime is 9686663431. The reversal of 9686663424 is 4243666869.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395932 + ... + 419684.

It is an arithmetic number, because the mean of its divisors is an integer number (202304900).

Almost surely, 2^9686663424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9686663424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14565952800).

9686663424 is an abundant number, since it is smaller than the sum of its proper divisors (19445242176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9686663424 is a wasteful number, since it uses less digits than its factorization.

9686663424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23837 (or 23817 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 54.

The square root of 9686663424 is about 98420.8485230645. The cubic root of 9686663424 is about 2131.6933806180.

The spelling of 9686663424 in words is "nine billion, six hundred eighty-six million, six hundred sixty-three thousand, four hundred twenty-four".