26159169791 has 2 divisors, whose sum is σ = 26159169792. Its totient is φ = 26159169790.

The previous prime is 26159169779. The next prime is 26159169823. The reversal of 26159169791 is 19796195162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26159169791 - 2¹⁰ = 26159168767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26159169721) 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, 13079584895 + 13079584896.

It is an arithmetic number, because the mean of its divisors is an integer number (13079584896).

Almost surely, 2^26159169791 is an apocalyptic number.

26159169791 is a deficient number, since it is larger than the sum of its proper divisors (1).

26159169791 is an equidigital number, since it uses as much as digits as its factorization.

26159169791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 56.

The spelling of 26159169791 in words is "twenty-six billion, one hundred fifty-nine million, one hundred sixty-nine thousand, seven hundred ninety-one".