18411080069 has 2 divisors, whose sum is σ = 18411080070. Its totient is φ = 18411080068.

The previous prime is 18411080027. The next prime is 18411080071. The reversal of 18411080069 is 96008011481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16519960900 + 1891119169 = 128530^2 + 43487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18411080069 is a prime.

It is a super-2 number, since 2×18411080069² (a number of 21 digits) contains 22 as substring.

Together with 18411080071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18411082069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9205540034 + 9205540035.

It is an arithmetic number, because the mean of its divisors is an integer number (9205540035).

Almost surely, 2^18411080069 is an apocalyptic number.

It is an amenable number.

18411080069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18411080069 is an equidigital number, since it uses as much as digits as its factorization.

18411080069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 18411080069 in words is "eighteen billion, four hundred eleven million, eighty thousand, sixty-nine".