26205473634941 has 2 divisors, whose sum is σ = 26205473634942. Its totient is φ = 26205473634940.

The previous prime is 26205473634889. The next prime is 26205473634971. The reversal of 26205473634941 is 14943637450262.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17533355671225 + 8672117963716 = 4187285^2 + 2944846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26205473634941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26205473634971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13102736817470 + 13102736817471.

It is an arithmetic number, because the mean of its divisors is an integer number (13102736817471).

Almost surely, 2^{26205473634941} is an apocalyptic number.

It is an amenable number.

26205473634941 is a deficient number, since it is larger than the sum of its proper divisors (1).

26205473634941 is an equidigital number, since it uses as much as digits as its factorization.

26205473634941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 26205473634941 in words is "twenty-six trillion, two hundred five billion, four hundred seventy-three million, six hundred thirty-four thousand, nine hundred forty-one".