26326109157 has 4 divisors (see below), whose sum is σ = 35101478880. Its totient is φ = 17550739436.

The previous prime is 26326109119. The next prime is 26326109207. The reversal of 26326109157 is 75190162362.

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 26326109157 - 2¹¹ = 26326107109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26326109657) 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, 4387684857 + ... + 4387684862.

It is an arithmetic number, because the mean of its divisors is an integer number (8775369720).

Almost surely, 2^26326109157 is an apocalyptic number.

It is an amenable number.

26326109157 is a deficient number, since it is larger than the sum of its proper divisors (8775369723).

26326109157 is an equidigital number, since it uses as much as digits as its factorization.

26326109157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775369722.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 26326109157 in words is "twenty-six billion, three hundred twenty-six million, one hundred nine thousand, one hundred fifty-seven".