9842432181 has 16 divisors (see below), whose sum is σ = 13265637504. Its totient is φ = 6490497024.

The previous prime is 9842432179. The next prime is 9842432209. The reversal of 9842432181 is 1812342489.

9842432181 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9842432181 - 2¹ = 9842432179 is a prime.

It is a super-2 number, since 2×9842432181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9842432111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606880 + ... + 622886.

It is an arithmetic number, because the mean of its divisors is an integer number (829102344).

Almost surely, 2^9842432181 is an apocalyptic number.

It is an amenable number.

9842432181 is a deficient number, since it is larger than the sum of its proper divisors (3423205323).

9842432181 is a wasteful number, since it uses less digits than its factorization.

9842432181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18220.

The product of its digits is 110592, while the sum is 42.

The square root of 9842432181 is about 99209.0327591193. The cubic root of 9842432181 is about 2143.0590789766.

The spelling of 9842432181 in words is "nine billion, eight hundred forty-two million, four hundred thirty-two thousand, one hundred eighty-one".