9869983488 has 432 divisors, whose sum is σ = 31902506720. Its totient is φ = 3045703680.

The previous prime is 9869983481. The next prime is 9869983489. The reversal of 9869983488 is 8843899689.

9869983488 is a `hidden beast` number, since 9 + 8 + 69 + 9 + 83 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×9869983488² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9869983481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161802978 + ... + 161803038.

Almost surely, 2^9869983488 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 9869983488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15951253360).

9869983488 is an abundant number, since it is smaller than the sum of its proper divisors (22032523232).

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

9869983488 is an frugal number, since it uses more digits than its factorization.

9869983488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 83 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 72.

The square root of 9869983488 is about 99347.7905541940. The cubic root of 9869983488 is about 2145.0568599530.

The spelling of 9869983488 in words is "nine billion, eight hundred sixty-nine million, nine hundred eighty-three thousand, four hundred eighty-eight".