26230789009 has 2 divisors, whose sum is σ = 26230789010. Its totient is φ = 26230789008.

The previous prime is 26230788977. The next prime is 26230789019. The reversal of 26230789009 is 90098703262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25970289409 + 260499600 = 161153^2 + 16140^2 .

It is a cyclic number.

It is not a de Polignac number, because 26230789009 - 2⁵ = 26230788977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26230789009.

It is not a weakly prime, because it can be changed into another prime (26230789019) 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, 13115394504 + 13115394505.

It is an arithmetic number, because the mean of its divisors is an integer number (13115394505).

Almost surely, 2^26230789009 is an apocalyptic number.

It is an amenable number.

26230789009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26230789009 is an equidigital number, since it uses as much as digits as its factorization.

26230789009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 26230789009 in words is "twenty-six billion, two hundred thirty million, seven hundred eighty-nine thousand, nine".