12726642047 has 8 divisors (see below), whose sum is σ = 14577868800. Its totient is φ = 10883699064.

The previous prime is 12726642043. The next prime is 12726642059. The reversal of 12726642047 is 74024662721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12726642047 - 2² = 12726642043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12726641995 and 12726642013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12726642043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067647 + ... + 2073792.

It is an arithmetic number, because the mean of its divisors is an integer number (1822233600).

Almost surely, 2^12726642047 is an apocalyptic number.

12726642047 is a deficient number, since it is larger than the sum of its proper divisors (1851226753).

12726642047 is an equidigital number, since it uses as much as digits as its factorization.

12726642047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141885.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 12726642047 in words is "twelve billion, seven hundred twenty-six million, six hundred forty-two thousand, forty-seven".