9421907616 has 144 divisors (see below), whose sum is σ = 29291764320. Its totient is φ = 2849026560.

The previous prime is 9421907609. The next prime is 9421907699. The reversal of 9421907616 is 6167091249.

9421907616 is a `hidden beast` number, since 9 + 4 + 21 + 9 + 0 + 7 + 616 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1609591 + ... + 1615433.

It is an arithmetic number, because the mean of its divisors is an integer number (203415030).

Almost surely, 2^9421907616 is an apocalyptic number.

9421907616 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9421907616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14645882160).

9421907616 is an abundant number, since it is smaller than the sum of its proper divisors (19869856704).

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

9421907616 is a wasteful number, since it uses less digits than its factorization.

9421907616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9421907616 is about 97066.5113002420. The cubic root of 9421907616 is about 2112.0925622311.

The spelling of 9421907616 in words is "nine billion, four hundred twenty-one million, nine hundred seven thousand, six hundred sixteen".