26634822161 has 2 divisors, whose sum is σ = 26634822162. Its totient is φ = 26634822160.

The previous prime is 26634822139. The next prime is 26634822163. The reversal of 26634822161 is 16122843662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24050116561 + 2584705600 = 155081^2 + 50840^2 .

It is a cyclic number.

It is not a de Polignac number, because 26634822161 - 2³⁴ = 9454952977 is a prime.

It is a super-3 number, since 3×26634822161³ (a number of 32 digits) contains 333 as substring.

Together with 26634822163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26634822163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13317411080 + 13317411081.

It is an arithmetic number, because the mean of its divisors is an integer number (13317411081).

Almost surely, 2^26634822161 is an apocalyptic number.

It is an amenable number.

26634822161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26634822161 is an equidigital number, since it uses as much as digits as its factorization.

26634822161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The spelling of 26634822161 in words is "twenty-six billion, six hundred thirty-four million, eight hundred twenty-two thousand, one hundred sixty-one".