26442046023989 has 2 divisors, whose sum is σ = 26442046023990. Its totient is φ = 26442046023988.

The previous prime is 26442046023961. The next prime is 26442046024001. The reversal of 26442046023989 is 98932064024462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25259570292100 + 1182475731889 = 5025890^2 + 1087417^2 .

It is a cyclic number.

It is not a de Polignac number, because 26442046023989 - 2⁸ = 26442046023733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26442046823989) 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, 13221023011994 + 13221023011995.

It is an arithmetic number, because the mean of its divisors is an integer number (13221023011995).

Almost surely, 2^{26442046023989} is an apocalyptic number.

It is an amenable number.

26442046023989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26442046023989 is an equidigital number, since it uses as much as digits as its factorization.

26442046023989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35831808, while the sum is 59.

The spelling of 26442046023989 in words is "twenty-six trillion, four hundred forty-two billion, forty-six million, twenty-three thousand, nine hundred eighty-nine".