26149086871 has 2 divisors, whose sum is σ = 26149086872. Its totient is φ = 26149086870.

The previous prime is 26149086869. The next prime is 26149086881. The reversal of 26149086871 is 17868094162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26149086871 - 2¹ = 26149086869 is a prime.

Together with 26149086869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26149086881) 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, 13074543435 + 13074543436.

It is an arithmetic number, because the mean of its divisors is an integer number (13074543436).

Almost surely, 2^26149086871 is an apocalyptic number.

26149086871 is a deficient number, since it is larger than the sum of its proper divisors (1).

26149086871 is an equidigital number, since it uses as much as digits as its factorization.

26149086871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 26149086871 in words is "twenty-six billion, one hundred forty-nine million, eighty-six thousand, eight hundred seventy-one".