12469169569 has 8 divisors (see below), whose sum is σ = 12535711848. Its totient is φ = 12402660480.

The previous prime is 12469169551. The next prime is 12469169591. The reversal of 12469169569 is 96596196421.

It can be written as a sum of positive squares in 4 ways, for example, as 7483115025 + 4986054544 = 86505^2 + 70612^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12469169569 - 2⁷ = 12469169441 is a prime.

It is a super-2 number, since 2×12469169569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12469169509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219659 + ... + 1229839.

It is an arithmetic number, because the mean of its divisors is an integer number (1566963981).

Almost surely, 2^12469169569 is an apocalyptic number.

It is an amenable number.

12469169569 is a deficient number, since it is larger than the sum of its proper divisors (66542279).

12469169569 is a wasteful number, since it uses less digits than its factorization.

12469169569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16595.

The product of its digits is 6298560, while the sum is 58.

The spelling of 12469169569 in words is "twelve billion, four hundred sixty-nine million, one hundred sixty-nine thousand, five hundred sixty-nine".