26426808653 has 4 divisors (see below), whose sum is σ = 30202067040. Its totient is φ = 22651550268.

The previous prime is 26426808647. The next prime is 26426808691. The reversal of 26426808653 is 35680862462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26426808653 - 2⁴ = 26426808637 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 (26426808623) 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, 1887629183 + ... + 1887629196.

It is an arithmetic number, because the mean of its divisors is an integer number (7550516760).

Almost surely, 2^26426808653 is an apocalyptic number.

It is an amenable number.

26426808653 is a deficient number, since it is larger than the sum of its proper divisors (3775258387).

26426808653 is an equidigital number, since it uses as much as digits as its factorization.

26426808653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775258386.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 26426808653 in words is "twenty-six billion, four hundred twenty-six million, eight hundred eight thousand, six hundred fifty-three".