9845009028 has 24 divisors (see below), whose sum is σ = 25524097760. Its totient is φ = 3281669640.

The previous prime is 9845009021. The next prime is 9845009063. The reversal of 9845009028 is 8209005489.

9845009028 is a `hidden beast` number, since 98 + 450 + 0 + 90 + 28 = 666.

It is a super-2 number, since 2×9845009028² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9845009021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45578638 + ... + 45578853.

Almost surely, 2^9845009028 is an apocalyptic number.

It is an amenable number.

9845009028 is an abundant number, since it is smaller than the sum of its proper divisors (15679088732).

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

9845009028 is a wasteful number, since it uses less digits than its factorization.

9845009028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91157504 (or 91157496 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 9845009028 is about 99222.0188667818. The cubic root of 9845009028 is about 2143.2460874108.

The spelling of 9845009028 in words is "nine billion, eight hundred forty-five million, nine thousand, twenty-eight".