12513029569 has 4 divisors (see below), whose sum is σ = 12532192596. Its totient is φ = 12493866544.

The previous prime is 12513029531. The next prime is 12513029579. The reversal of 12513029569 is 96592031521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 923430544 + 11589599025 = 30388^2 + 107655^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513029569 - 2²⁵ = 12479475137 is a prime.

It is a super-2 number, since 2×12513029569² (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 (12513029579) 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 3 ways as a sum of consecutive naturals, for example, 9580534 + ... + 9581839.

It is an arithmetic number, because the mean of its divisors is an integer number (3133048149).

Almost surely, 2^12513029569 is an apocalyptic number.

It is an amenable number.

12513029569 is a deficient number, since it is larger than the sum of its proper divisors (19163027).

12513029569 is an equidigital number, since it uses as much as digits as its factorization.

12513029569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19163026.

The product of its (nonzero) digits is 145800, while the sum is 43.

The spelling of 12513029569 in words is "twelve billion, five hundred thirteen million, twenty-nine thousand, five hundred sixty-nine".