9932424181 has 2 divisors, whose sum is σ = 9932424182. Its totient is φ = 9932424180.

The previous prime is 9932424169. The next prime is 9932424191. The reversal of 9932424181 is 1814242399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8804068900 + 1128355281 = 93830^2 + 33591^2 .

It is a cyclic number.

It is not a de Polignac number, because 9932424181 - 2⁷ = 9932424053 is a prime.

It is a super-2 number, since 2×9932424181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9932424191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4966212090 + 4966212091.

It is an arithmetic number, because the mean of its divisors is an integer number (4966212091).

Almost surely, 2^9932424181 is an apocalyptic number.

It is an amenable number.

9932424181 is a deficient number, since it is larger than the sum of its proper divisors (1).

9932424181 is an equidigital number, since it uses as much as digits as its factorization.

9932424181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 9932424181 is about 99661.5481567490. The cubic root of 9932424181 is about 2149.5707945107.

The spelling of 9932424181 in words is "nine billion, nine hundred thirty-two million, four hundred twenty-four thousand, one hundred eighty-one".