13261308667 has 2 divisors, whose sum is σ = 13261308668. Its totient is φ = 13261308666.

The previous prime is 13261308583. The next prime is 13261308721. The reversal of 13261308667 is 76680316231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13261308667 - 2¹⁹ = 13260784379 is a prime.

It is a super-2 number, since 2×13261308667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13261309667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6630654333 + 6630654334.

It is an arithmetic number, because the mean of its divisors is an integer number (6630654334).

Almost surely, 2^13261308667 is an apocalyptic number.

13261308667 is a deficient number, since it is larger than the sum of its proper divisors (1).

13261308667 is an equidigital number, since it uses as much as digits as its factorization.

13261308667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 13261308667 in words is "thirteen billion, two hundred sixty-one million, three hundred eight thousand, six hundred sixty-seven".