26531970171107 has 2 divisors, whose sum is σ = 26531970171108. Its totient is φ = 26531970171106.

The previous prime is 26531970171103. The next prime is 26531970171169. The reversal of 26531970171107 is 70117107913562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26531970171107 - 2² = 26531970171103 is a prime.

It is a super-2 number, since 2×26531970171107² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26531970171101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13265985085553 + 13265985085554.

It is an arithmetic number, because the mean of its divisors is an integer number (13265985085554).

Almost surely, 2^{26531970171107} is an apocalyptic number.

26531970171107 is a deficient number, since it is larger than the sum of its proper divisors (1).

26531970171107 is an equidigital number, since it uses as much as digits as its factorization.

26531970171107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 50.

The spelling of 26531970171107 in words is "twenty-six trillion, five hundred thirty-one billion, nine hundred seventy million, one hundred seventy-one thousand, one hundred seven".