168469073569 has 2 divisors, whose sum is σ = 168469073570. Its totient is φ = 168469073568.

The previous prime is 168469073557. The next prime is 168469073599. The reversal of 168469073569 is 965370964861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149914547344 + 18554526225 = 387188^2 + 136215^2 .

It is a cyclic number.

It is not a de Polignac number, because 168469073569 - 2⁵ = 168469073537 is a prime.

It is a super-2 number, since 2×168469073569² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168469073569.

It is not a weakly prime, because it can be changed into another prime (168469073599) 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, 84234536784 + 84234536785.

It is an arithmetic number, because the mean of its divisors is an integer number (84234536785).

Almost surely, 2^168469073569 is an apocalyptic number.

It is an amenable number.

168469073569 is a deficient number, since it is larger than the sum of its proper divisors (1).

168469073569 is an equidigital number, since it uses as much as digits as its factorization.

168469073569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 168469073569 in words is "one hundred sixty-eight billion, four hundred sixty-nine million, seventy-three thousand, five hundred sixty-nine".