9799972480 has 128 divisors (see below), whose sum is σ = 24614150400. Its totient is φ = 3723878400.

The previous prime is 9799972463. The next prime is 9799972493. The reversal of 9799972480 is 842799979.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220516 + ... + 2224924.

It is an arithmetic number, because the mean of its divisors is an integer number (192298050).

Almost surely, 2^9799972480 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 9799972480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12307075200).

9799972480 is an abundant number, since it is smaller than the sum of its proper divisors (14814177920).

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

9799972480 is a wasteful number, since it uses less digits than its factorization.

9799972480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4590 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 64.

The square root of 9799972480 is about 98994.8103690289. The cubic root of 9799972480 is about 2139.9729579953.

The spelling of 9799972480 in words is "nine billion, seven hundred ninety-nine million, nine hundred seventy-two thousand, four hundred eighty".