9845728452 has 36 divisors (see below), whose sum is σ = 28443216256. Its totient is φ = 2813065200.

The previous prime is 9845728429. The next prime is 9845728469. The reversal of 9845728452 is 2548275489.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19534924 + ... + 19535427.

Almost surely, 2^9845728452 is an apocalyptic number.

It is an amenable number.

9845728452 is an abundant number, since it is smaller than the sum of its proper divisors (18597487804).

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

9845728452 is a wasteful number, since it uses less digits than its factorization.

9845728452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39070368 (or 39070363 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 9845728452 is about 99225.6441248934. The cubic root of 9845728452 is about 2143.2982920393.

The spelling of 9845728452 in words is "nine billion, eight hundred forty-five million, seven hundred twenty-eight thousand, four hundred fifty-two".