12529346727 has 4 divisors (see below), whose sum is σ = 16705795640. Its totient is φ = 8352897816.

The previous prime is 12529346707. The next prime is 12529346771. The reversal of 12529346727 is 72764392521.

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

It is a de Polignac number, because none of the positive numbers 2^k-12529346727 is a prime.

It is a super-2 number, since 2×12529346727² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12529346707) 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, 2088224452 + ... + 2088224457.

It is an arithmetic number, because the mean of its divisors is an integer number (4176448910).

Almost surely, 2^12529346727 is an apocalyptic number.

12529346727 is a deficient number, since it is larger than the sum of its proper divisors (4176448913).

12529346727 is an equidigital number, since it uses as much as digits as its factorization.

12529346727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176448912.

The product of its digits is 1270080, while the sum is 48.

The spelling of 12529346727 in words is "twelve billion, five hundred twenty-nine million, three hundred forty-six thousand, seven hundred twenty-seven".