26355641329 has 2 divisors, whose sum is σ = 26355641330. Its totient is φ = 26355641328.

The previous prime is 26355641269. The next prime is 26355641357. The reversal of 26355641329 is 92314655362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25543391329 + 812250000 = 159823^2 + 28500^2 .

It is a cyclic number.

It is not a de Polignac number, because 26355641329 - 2¹¹ = 26355639281 is a prime.

It is not a weakly prime, because it can be changed into another prime (26355641629) 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, 13177820664 + 13177820665.

It is an arithmetic number, because the mean of its divisors is an integer number (13177820665).

Almost surely, 2^26355641329 is an apocalyptic number.

It is an amenable number.

26355641329 is a deficient number, since it is larger than the sum of its proper divisors (1).

26355641329 is an equidigital number, since it uses as much as digits as its factorization.

26355641329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 46.

The spelling of 26355641329 in words is "twenty-six billion, three hundred fifty-five million, six hundred forty-one thousand, three hundred twenty-nine".