18069410486509 has 2 divisors, whose sum is σ = 18069410486510. Its totient is φ = 18069410486508.

The previous prime is 18069410486399. The next prime is 18069410486551. The reversal of 18069410486509 is 90568401496081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12310624822500 + 5758785664009 = 3508650^2 + 2399747^2 .

It is a cyclic number.

It is not a de Polignac number, because 18069410486509 - 2⁷ = 18069410486381 is a prime.

It is a super-2 number, since 2×18069410486509² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18069410486579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034705243254 + 9034705243255.

It is an arithmetic number, because the mean of its divisors is an integer number (9034705243255).

Almost surely, 2^{18069410486509} is an apocalyptic number.

It is an amenable number.

18069410486509 is a deficient number, since it is larger than the sum of its proper divisors (1).

18069410486509 is an equidigital number, since it uses as much as digits as its factorization.

18069410486509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 18069410486509 in words is "eighteen trillion, sixty-nine billion, four hundred ten million, four hundred eighty-six thousand, five hundred nine".