18388124141 has 2 divisors, whose sum is σ = 18388124142. Its totient is φ = 18388124140.

The previous prime is 18388124129. The next prime is 18388124147. The reversal of 18388124141 is 14142188381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16267982116 + 2120142025 = 127546^2 + 46045^2 .

It is a cyclic number.

It is not a de Polignac number, because 18388124141 - 2¹⁴ = 18388107757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18388124147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9194062070 + 9194062071.

It is an arithmetic number, because the mean of its divisors is an integer number (9194062071).

Almost surely, 2^18388124141 is an apocalyptic number.

It is an amenable number.

18388124141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18388124141 is an equidigital number, since it uses as much as digits as its factorization.

18388124141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 41.

The spelling of 18388124141 in words is "eighteen billion, three hundred eighty-eight million, one hundred twenty-four thousand, one hundred forty-one".