12736704529 has 4 divisors (see below), whose sum is σ = 12736932160. Its totient is φ = 12736476900.

The previous prime is 12736704527. The next prime is 12736704577. The reversal of 12736704529 is 92540763721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12736704529 - 2¹ = 12736704527 is a prime.

It is a super-2 number, since 2×12736704529² (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 (12736704527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34804 + ... + 163354.

It is an arithmetic number, because the mean of its divisors is an integer number (3184233040).

Almost surely, 2^12736704529 is an apocalyptic number.

It is an amenable number.

12736704529 is a deficient number, since it is larger than the sum of its proper divisors (227631).

12736704529 is an equidigital number, since it uses as much as digits as its factorization.

12736704529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227630.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 12736704529 in words is "twelve billion, seven hundred thirty-six million, seven hundred four thousand, five hundred twenty-nine".