9841542705 has 24 divisors (see below), whose sum is σ = 17380540008. Its totient is φ = 5149787136.

The previous prime is 9841542653. The next prime is 9841542793. The reversal of 9841542705 is 5072451489.

It can be written as a sum of positive squares in 4 ways, for example, as 1185287184 + 8656255521 = 34428^2 + 93039^2 .

It is not a de Polignac number, because 9841542705 - 2¹⁶ = 9841477169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 2060832 + ... + 2065601.

It is an arithmetic number, because the mean of its divisors is an integer number (724189167).

Almost surely, 2^9841542705 is an apocalyptic number.

It is an amenable number.

9841542705 is a deficient number, since it is larger than the sum of its proper divisors (7538997303).

9841542705 is a wasteful number, since it uses less digits than its factorization.

9841542705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126497 (or 4126494 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 9841542705 is about 99204.5498200561. The cubic root of 9841542705 is about 2142.9945198308.

The spelling of 9841542705 in words is "nine billion, eight hundred forty-one million, five hundred forty-two thousand, seven hundred five".