8544916181 has 2 divisors, whose sum is σ = 8544916182. Its totient is φ = 8544916180.

The previous prime is 8544916147. The next prime is 8544916201. The reversal of 8544916181 is 1816194458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5118687025 + 3426229156 = 71545^2 + 58534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8544916181 is a prime.

It is a super-2 number, since 2×8544916181² (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 (8544916141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272458090 + 4272458091.

It is an arithmetic number, because the mean of its divisors is an integer number (4272458091).

Almost surely, 2^8544916181 is an apocalyptic number.

It is an amenable number.

8544916181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8544916181 is an equidigital number, since it uses as much as digits as its factorization.

8544916181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 47.

The square root of 8544916181 is about 92438.7158121531. The cubic root of 8544916181 is about 2044.4159897615.

The spelling of 8544916181 in words is "eight billion, five hundred forty-four million, nine hundred sixteen thousand, one hundred eighty-one".