13364726261 has 2 divisors, whose sum is σ = 13364726262. Its totient is φ = 13364726260.

The previous prime is 13364726237. The next prime is 13364726281. The reversal of 13364726261 is 16262746331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11986089361 + 1378636900 = 109481^2 + 37130^2 .

It is a cyclic number.

It is not a de Polignac number, because 13364726261 - 2¹⁸ = 13364464117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13364726281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6682363130 + 6682363131.

It is an arithmetic number, because the mean of its divisors is an integer number (6682363131).

Almost surely, 2^13364726261 is an apocalyptic number.

It is an amenable number.

13364726261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13364726261 is an equidigital number, since it uses as much as digits as its factorization.

13364726261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The spelling of 13364726261 in words is "thirteen billion, three hundred sixty-four million, seven hundred twenty-six thousand, two hundred sixty-one".