26261640324943 has 2 divisors, whose sum is σ = 26261640324944. Its totient is φ = 26261640324942.

The previous prime is 26261640324847. The next prime is 26261640325027. The reversal of 26261640324943 is 34942304616262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26261640324943 - 2²¹ = 26261638227791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26261640324043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130820162471 + 13130820162472.

It is an arithmetic number, because the mean of its divisors is an integer number (13130820162472).

Almost surely, 2^{26261640324943} is an apocalyptic number.

26261640324943 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261640324943 is an equidigital number, since it uses as much as digits as its factorization.

26261640324943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 26261640324943 in words is "twenty-six trillion, two hundred sixty-one billion, six hundred forty million, three hundred twenty-four thousand, nine hundred forty-three".