26205473630447 has 2 divisors, whose sum is σ = 26205473630448. Its totient is φ = 26205473630446.

The previous prime is 26205473630443. The next prime is 26205473630461. The reversal of 26205473630447 is 74403637450262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26205473630447 - 2² = 26205473630443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26205473630443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13102736815223 + 13102736815224.

It is an arithmetic number, because the mean of its divisors is an integer number (13102736815224).

Almost surely, 2^{26205473630447} is an apocalyptic number.

26205473630447 is a deficient number, since it is larger than the sum of its proper divisors (1).

26205473630447 is an equidigital number, since it uses as much as digits as its factorization.

26205473630447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 53.

The spelling of 26205473630447 in words is "twenty-six trillion, two hundred five billion, four hundred seventy-three million, six hundred thirty thousand, four hundred forty-seven".