18000011069 has 2 divisors, whose sum is σ = 18000011070. Its totient is φ = 18000011068.

The previous prime is 18000011053. The next prime is 18000011129. The reversal of 18000011069 is 96011000081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12003831844 + 5996179225 = 109562^2 + 77435^2 .

It is a cyclic number.

It is not a de Polignac number, because 18000011069 - 2⁴ = 18000011053 is a prime.

It is a super-2 number, since 2×18000011069² (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 (18000041069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000005534 + 9000005535.

It is an arithmetic number, because the mean of its divisors is an integer number (9000005535).

Almost surely, 2^18000011069 is an apocalyptic number.

It is an amenable number.

18000011069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000011069 is an equidigital number, since it uses as much as digits as its factorization.

18000011069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 18000011069 in words is "eighteen billion, eleven thousand, sixty-nine".