9217471680 has 224 divisors, whose sum is σ = 33132369600. Its totient is φ = 2411495424.

The previous prime is 9217471661. The next prime is 9217471699. The reversal of 9217471680 is 861747129.

It is a happy number.

9217471680 is a `hidden beast` number, since 92 + 17 + 471 + 6 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (9217471661) and next prime (9217471699).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447856 + ... + 467984.

Almost surely, 2^9217471680 is an apocalyptic number.

9217471680 is a gapful number since it is divisible by the number (90) 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 9217471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16566184800).

9217471680 is an abundant number, since it is smaller than the sum of its proper divisors (23914897920).

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

9217471680 is a wasteful number, since it uses less digits than its factorization.

9217471680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20208 (or 20192 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 9217471680 is about 96007.6646940233. The cubic root of 9217471680 is about 2096.7047093316.

The spelling of 9217471680 in words is "nine billion, two hundred seventeen million, four hundred seventy-one thousand, six hundred eighty".