26859895819 has 2 divisors, whose sum is σ = 26859895820. Its totient is φ = 26859895818.

The previous prime is 26859895771. The next prime is 26859895877. The reversal of 26859895819 is 91859895862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26859895819 - 2¹¹ = 26859893771 is a prime.

It is a super-2 number, since 2×26859895819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26859295819) 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, 13429947909 + 13429947910.

It is an arithmetic number, because the mean of its divisors is an integer number (13429947910).

Almost surely, 2^26859895819 is an apocalyptic number.

26859895819 is a deficient number, since it is larger than the sum of its proper divisors (1).

26859895819 is an equidigital number, since it uses as much as digits as its factorization.

26859895819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 70.

The spelling of 26859895819 in words is "twenty-six billion, eight hundred fifty-nine million, eight hundred ninety-five thousand, eight hundred nineteen".