26205461239 has 2 divisors, whose sum is σ = 26205461240. Its totient is φ = 26205461238.

The previous prime is 26205461203. The next prime is 26205461279. The reversal of 26205461239 is 93216450262.

It is an a-pointer prime, because the next prime (26205461279) can be obtained adding 26205461239 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26205461239 - 2⁹ = 26205460727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26205461279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13102730619 + 13102730620.

It is an arithmetic number, because the mean of its divisors is an integer number (13102730620).

Almost surely, 2^26205461239 is an apocalyptic number.

26205461239 is a deficient number, since it is larger than the sum of its proper divisors (1).

26205461239 is an equidigital number, since it uses as much as digits as its factorization.

26205461239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 26205461239 in words is "twenty-six billion, two hundred five million, four hundred sixty-one thousand, two hundred thirty-nine".