4109788181 has 2 divisors, whose sum is σ = 4109788182. Its totient is φ = 4109788180.

The previous prime is 4109788139. The next prime is 4109788219. The reversal of 4109788181 is 1818879014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3365044081 + 744744100 = 58009^2 + 27290^2 .

It is a cyclic number.

It is not a de Polignac number, because 4109788181 - 2¹⁴ = 4109771797 is a prime.

It is a super-2 number, since 2×4109788181² = 33780717785374577522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4109788121) 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 as a sum of consecutive naturals, namely, 2054894090 + 2054894091.

It is an arithmetic number, because the mean of its divisors is an integer number (2054894091).

Almost surely, 2^4109788181 is an apocalyptic number.

It is an amenable number.

4109788181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4109788181 is an equidigital number, since it uses as much as digits as its factorization.

4109788181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 47.

The square root of 4109788181 is about 64107.6296629348. The cubic root of 4109788181 is about 1601.7933253070.

The spelling of 4109788181 in words is "four billion, one hundred nine million, seven hundred eighty-eight thousand, one hundred eighty-one".