12736246667 has 4 divisors (see below), whose sum is σ = 12833470056. Its totient is φ = 12639023280.

The previous prime is 12736246603. The next prime is 12736246681. The reversal of 12736246667 is 76664263721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76664263721 = 109 ⋅703341869.

It is a cyclic number.

It is not a de Polignac number, because 12736246667 - 2⁶ = 12736246603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12736246697) 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, 48611498 + ... + 48611759.

It is an arithmetic number, because the mean of its divisors is an integer number (3208367514).

Almost surely, 2^12736246667 is an apocalyptic number.

12736246667 is a deficient number, since it is larger than the sum of its proper divisors (97223389).

12736246667 is an equidigital number, since it uses as much as digits as its factorization.

12736246667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97223388.

The product of its digits is 3048192, while the sum is 50.

The spelling of 12736246667 in words is "twelve billion, seven hundred thirty-six million, two hundred forty-six thousand, six hundred sixty-seven".