26106644117 has 4 divisors (see below), whose sum is σ = 26375784876. Its totient is φ = 25837503360.

The previous prime is 26106644107. The next prime is 26106644159. The reversal of 26106644117 is 71144660162.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13595326801 + 12511317316 = 116599^2 + 111854^2 .

It is a cyclic number.

It is not a de Polignac number, because 26106644117 - 2⁴ = 26106644101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26106644107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134570234 + ... + 134570427.

It is an arithmetic number, because the mean of its divisors is an integer number (6593946219).

Almost surely, 2^26106644117 is an apocalyptic number.

It is an amenable number.

26106644117 is a deficient number, since it is larger than the sum of its proper divisors (269140759).

26106644117 is an equidigital number, since it uses as much as digits as its factorization.

26106644117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269140758.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 26106644117 in words is "twenty-six billion, one hundred six million, six hundred forty-four thousand, one hundred seventeen".