26508206011 has 4 divisors (see below), whose sum is σ = 30295092592. Its totient is φ = 22721319432.

The previous prime is 26508206009. The next prime is 26508206047. The reversal of 26508206011 is 11060280562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11060280562 = 2 ⋅5530140281.

It is not a de Polignac number, because 26508206011 - 2¹ = 26508206009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26508206071) 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, 1893443280 + ... + 1893443293.

It is an arithmetic number, because the mean of its divisors is an integer number (7573773148).

Almost surely, 2^26508206011 is an apocalyptic number.

26508206011 is a deficient number, since it is larger than the sum of its proper divisors (3786886581).

26508206011 is an equidigital number, since it uses as much as digits as its factorization.

26508206011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786886580.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 26508206011 its reverse (11060280562), we get a palindrome (37568486573).

The spelling of 26508206011 in words is "twenty-six billion, five hundred eight million, two hundred six thousand, eleven".