26265667705 has 4 divisors (see below), whose sum is σ = 31518801252. Its totient is φ = 21012534160.

The previous prime is 26265667699. The next prime is 26265667711. The reversal of 26265667705 is 50776656262.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26265667699) and next prime (26265667711).

It can be written as a sum of positive squares in 2 ways, for example, as 12438494784 + 13827172921 = 111528^2 + 117589^2 .

It is not a de Polignac number, because 26265667705 - 2⁹ = 26265667193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626566766 + ... + 2626566775.

It is an arithmetic number, because the mean of its divisors is an integer number (7879700313).

Almost surely, 2^26265667705 is an apocalyptic number.

It is an amenable number.

26265667705 is a deficient number, since it is larger than the sum of its proper divisors (5253133547).

26265667705 is an equidigital number, since it uses as much as digits as its factorization.

26265667705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253133546.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 26265667705 in words is "twenty-six billion, two hundred sixty-five million, six hundred sixty-seven thousand, seven hundred five".