26549968279 has 2 divisors, whose sum is σ = 26549968280. Its totient is φ = 26549968278.

The previous prime is 26549968271. The next prime is 26549968301. The reversal of 26549968279 is 97286994562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26549968279 - 2³ = 26549968271 is a prime.

It is a super-3 number, since 3×26549968279³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26549968271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13274984139 + 13274984140.

It is an arithmetic number, because the mean of its divisors is an integer number (13274984140).

Almost surely, 2^26549968279 is an apocalyptic number.

26549968279 is a deficient number, since it is larger than the sum of its proper divisors (1).

26549968279 is an equidigital number, since it uses as much as digits as its factorization.

26549968279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 67.

The spelling of 26549968279 in words is "twenty-six billion, five hundred forty-nine million, nine hundred sixty-eight thousand, two hundred seventy-nine".