26389001263789 has 2 divisors, whose sum is σ = 26389001263790. Its totient is φ = 26389001263788.

The previous prime is 26389001263741. The next prime is 26389001263831. The reversal of 26389001263789 is 98736210098362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26328751634025 + 60249629764 = 5131155^2 + 245458^2 .

It is a cyclic number.

It is not a de Polignac number, because 26389001263789 - 2³³ = 26380411329197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26389001263789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26389001263739) 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, 13194500631894 + 13194500631895.

It is an arithmetic number, because the mean of its divisors is an integer number (13194500631895).

Almost surely, 2^{26389001263789} is an apocalyptic number.

It is an amenable number.

26389001263789 is a deficient number, since it is larger than the sum of its proper divisors (1).

26389001263789 is an equidigital number, since it uses as much as digits as its factorization.

26389001263789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 26389001263789 in words is "twenty-six trillion, three hundred eighty-nine billion, one million, two hundred sixty-three thousand, seven hundred eighty-nine".