12496132729 has 4 divisors (see below), whose sum is σ = 12833866084. Its totient is φ = 12158399376.

The previous prime is 12496132711. The next prime is 12496132739. The reversal of 12496132729 is 92723169421.

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 10398492729 + 2097640000 = 101973^2 + 45800^2 .

It is a cyclic number.

It is not a de Polignac number, because 12496132729 - 2⁷ = 12496132601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12496132739) 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, 168866622 + ... + 168866695.

It is an arithmetic number, because the mean of its divisors is an integer number (3208466521).

Almost surely, 2^12496132729 is an apocalyptic number.

It is an amenable number.

12496132729 is a deficient number, since it is larger than the sum of its proper divisors (337733355).

12496132729 is an equidigital number, since it uses as much as digits as its factorization.

12496132729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337733354.

The product of its digits is 326592, while the sum is 46.

The spelling of 12496132729 in words is "twelve billion, four hundred ninety-six million, one hundred thirty-two thousand, seven hundred twenty-nine".