9845621011 has 2 divisors, whose sum is σ = 9845621012. Its totient is φ = 9845621010.

The previous prime is 9845620997. The next prime is 9845621083. The reversal of 9845621011 is 1101265489.

9845621011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9845621011 - 2⁵ = 9845620979 is a prime.

It is not a weakly prime, because it can be changed into another prime (9845621411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4922810505 + 4922810506.

It is an arithmetic number, because the mean of its divisors is an integer number (4922810506).

Almost surely, 2^9845621011 is an apocalyptic number.

9845621011 is a deficient number, since it is larger than the sum of its proper divisors (1).

9845621011 is an equidigital number, since it uses as much as digits as its factorization.

9845621011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 9845621011 is about 99225.1027260743. The cubic root of 9845621011 is about 2143.2904958006.

The spelling of 9845621011 in words is "nine billion, eight hundred forty-five million, six hundred twenty-one thousand, eleven".