26548927891 has 2 divisors, whose sum is σ = 26548927892. Its totient is φ = 26548927890.

The previous prime is 26548927879. The next prime is 26548927927. The reversal of 26548927891 is 19872984562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26548927891 - 2⁷ = 26548927763 is a prime.

It is not a weakly prime, because it can be changed into another prime (26548927841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13274463945 + 13274463946.

It is an arithmetic number, because the mean of its divisors is an integer number (13274463946).

Almost surely, 2^26548927891 is an apocalyptic number.

26548927891 is a deficient number, since it is larger than the sum of its proper divisors (1).

26548927891 is an equidigital number, since it uses as much as digits as its factorization.

26548927891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 61.

The spelling of 26548927891 in words is "twenty-six billion, five hundred forty-eight million, nine hundred twenty-seven thousand, eight hundred ninety-one".