9899488560 has 80 divisors (see below), whose sum is σ = 33049072224. Its totient is φ = 2436796416.

The previous prime is 9899488541. The next prime is 9899488561. The reversal of 9899488560 is 658849989.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 9899488491 and 9899488500.

It is not an unprimeable number, because it can be changed into a prime (9899488561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583337 + ... + 1589576.

Almost surely, 2^9899488560 is an apocalyptic number.

It is an amenable number.

9899488560 is an abundant number, since it is smaller than the sum of its proper divisors (23149583664).

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

9899488560 is a wasteful number, since it uses less digits than its factorization.

9899488560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172942 (or 3172936 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 66.

The square root of 9899488560 is about 99496.1735947669. The cubic root of 9899488560 is about 2147.1921926621.

The spelling of 9899488560 in words is "nine billion, eight hundred ninety-nine million, four hundred eighty-eight thousand, five hundred sixty".