26069551047109 has 2 divisors, whose sum is σ = 26069551047110. Its totient is φ = 26069551047108.

The previous prime is 26069551047101. The next prime is 26069551047193. The reversal of 26069551047109 is 90174015596062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25481829490209 + 587721556900 = 5047953^2 + 766630^2 .

It is a cyclic number.

It is not a de Polignac number, because 26069551047109 - 2³ = 26069551047101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26069551047109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26069551047101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13034775523554 + 13034775523555.

It is an arithmetic number, because the mean of its divisors is an integer number (13034775523555).

Almost surely, 2^{26069551047109} is an apocalyptic number.

It is an amenable number.

26069551047109 is a deficient number, since it is larger than the sum of its proper divisors (1).

26069551047109 is an equidigital number, since it uses as much as digits as its factorization.

26069551047109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 26069551047109 in words is "twenty-six trillion, sixty-nine billion, five hundred fifty-one million, forty-seven thousand, one hundred nine".