13266726463 has 2 divisors, whose sum is σ = 13266726464. Its totient is φ = 13266726462.

The previous prime is 13266726457. The next prime is 13266726479. The reversal of 13266726463 is 36462766231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13266726463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13266726493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6633363231 + 6633363232.

It is an arithmetic number, because the mean of its divisors is an integer number (6633363232).

Almost surely, 2^13266726463 is an apocalyptic number.

13266726463 is a deficient number, since it is larger than the sum of its proper divisors (1).

13266726463 is an equidigital number, since it uses as much as digits as its factorization.

13266726463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 46.

The spelling of 13266726463 in words is "thirteen billion, two hundred sixty-six million, seven hundred twenty-six thousand, four hundred sixty-three".