12336781469 has 16 divisors (see below), whose sum is σ = 13410714240. Its totient is φ = 11317405440.

The previous prime is 12336781411. The next prime is 12336781487. The reversal of 12336781469 is 96418763321.

It is a cyclic number.

It is not a de Polignac number, because 12336781469 - 2⁸ = 12336781213 is a prime.

It is a super-2 number, since 2×12336781469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12336781169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55232 + ... + 166505.

It is an arithmetic number, because the mean of its divisors is an integer number (838169640).

Almost surely, 2^12336781469 is an apocalyptic number.

It is an amenable number.

12336781469 is a deficient number, since it is larger than the sum of its proper divisors (1073932771).

12336781469 is a wasteful number, since it uses less digits than its factorization.

12336781469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221860.

The product of its digits is 1306368, while the sum is 50.

The spelling of 12336781469 in words is "twelve billion, three hundred thirty-six million, seven hundred eighty-one thousand, four hundred sixty-nine".