13643426135671 has 2 divisors, whose sum is σ = 13643426135672. Its totient is φ = 13643426135670.

The previous prime is 13643426135659. The next prime is 13643426135681. The reversal of 13643426135671 is 17653162434631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13643426135671 is a prime.

It is a super-2 number, since 2×13643426135671² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13643426135681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6821713067835 + 6821713067836.

It is an arithmetic number, because the mean of its divisors is an integer number (6821713067836).

Almost surely, 2^{13643426135671} is an apocalyptic number.

13643426135671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13643426135671 is an equidigital number, since it uses as much as digits as its factorization.

13643426135671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 52.

The spelling of 13643426135671 in words is "thirteen trillion, six hundred forty-three billion, four hundred twenty-six million, one hundred thirty-five thousand, six hundred seventy-one".