26504331227809 has 2 divisors, whose sum is σ = 26504331227810. Its totient is φ = 26504331227808.

The previous prime is 26504331227791. The next prime is 26504331227827. The reversal of 26504331227809 is 90872213340562.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (26504331227791) and next prime (26504331227827).

It can be written as a sum of positive squares in only one way, i.e., 26450160992784 + 54170235025 = 5142972^2 + 232745^2 .

It is a cyclic number.

It is not a de Polignac number, because 26504331227809 - 2¹³ = 26504331219617 is a prime.

It is a super-2 number, since 2×26504331227809² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26504331297809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13252165613904 + 13252165613905.

It is an arithmetic number, because the mean of its divisors is an integer number (13252165613905).

It is a 1-persistent number, because it is pandigital, but 2⋅26504331227809 = 53008662455618 is not.

Almost surely, 2^{26504331227809} is an apocalyptic number.

It is an amenable number.

26504331227809 is a deficient number, since it is larger than the sum of its proper divisors (1).

26504331227809 is an equidigital number, since it uses as much as digits as its factorization.

26504331227809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 26504331227809 in words is "twenty-six trillion, five hundred four billion, three hundred thirty-one million, two hundred twenty-seven thousand, eight hundred nine".