26205473634029 has 2 divisors, whose sum is σ = 26205473634030. Its totient is φ = 26205473634028.

The previous prime is 26205473634017. The next prime is 26205473634077. The reversal of 26205473634029 is 92043637450262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26130775277929 + 74698356100 = 5111827^2 + 273310^2 .

It is a cyclic number.

It is not a de Polignac number, because 26205473634029 - 2⁴ = 26205473634013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26205473634229) 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, 13102736817014 + 13102736817015.

It is an arithmetic number, because the mean of its divisors is an integer number (13102736817015).

Almost surely, 2^{26205473634029} is an apocalyptic number.

It is an amenable number.

26205473634029 is a deficient number, since it is larger than the sum of its proper divisors (1).

26205473634029 is an equidigital number, since it uses as much as digits as its factorization.

26205473634029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 26205473634029 in words is "twenty-six trillion, two hundred five billion, four hundred seventy-three million, six hundred thirty-four thousand, twenty-nine".