26558806011 has 4 divisors (see below), whose sum is σ = 35411741352. Its totient is φ = 17705870672.

The previous prime is 26558806007. The next prime is 26558806067. The reversal of 26558806011 is 11060885562.

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

It is a cyclic number.

It is not a de Polignac number, because 26558806011 - 2² = 26558806007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26558806091) 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, 4426467666 + ... + 4426467671.

It is an arithmetic number, because the mean of its divisors is an integer number (8852935338).

Almost surely, 2^26558806011 is an apocalyptic number.

26558806011 is a deficient number, since it is larger than the sum of its proper divisors (8852935341).

26558806011 is an equidigital number, since it uses as much as digits as its factorization.

26558806011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852935340.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 26558806011 in words is "twenty-six billion, five hundred fifty-eight million, eight hundred six thousand, eleven".