12663461267 has 4 divisors (see below), whose sum is σ = 12663743880. Its totient is φ = 12663178656.

The previous prime is 12663461191. The next prime is 12663461303. The reversal of 12663461267 is 76216436621.

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

It is a cyclic number.

It is not a de Polignac number, because 12663461267 - 2¹⁸ = 12663199123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12663451267) 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, 57542 + ... + 169227.

It is an arithmetic number, because the mean of its divisors is an integer number (3165935970).

Almost surely, 2^12663461267 is an apocalyptic number.

12663461267 is a deficient number, since it is larger than the sum of its proper divisors (282613).

12663461267 is an equidigital number, since it uses as much as digits as its factorization.

12663461267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282612.

The product of its digits is 435456, while the sum is 44.

Adding to 12663461267 its reverse (76216436621), we get a palindrome (88879897888).

The spelling of 12663461267 in words is "twelve billion, six hundred sixty-three million, four hundred sixty-one thousand, two hundred sixty-seven".