26088241909 has 4 divisors (see below), whose sum is σ = 26097067404. Its totient is φ = 26079416416.

The previous prime is 26088241889. The next prime is 26088241913. The reversal of 26088241909 is 90914288062.

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 15183661284 + 10904580625 = 123222^2 + 104425^2 .

It is a cyclic number.

It is not a de Polignac number, because 26088241909 - 2⁵ = 26088241877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26088241999) 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, 4408312 + ... + 4414225.

It is an arithmetic number, because the mean of its divisors is an integer number (6524266851).

Almost surely, 2^26088241909 is an apocalyptic number.

It is an amenable number.

26088241909 is a deficient number, since it is larger than the sum of its proper divisors (8825495).

26088241909 is an equidigital number, since it uses as much as digits as its factorization.

26088241909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825494.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 26088241909 in words is "twenty-six billion, eighty-eight million, two hundred forty-one thousand, nine hundred nine".