26164426117087 has 2 divisors, whose sum is σ = 26164426117088. Its totient is φ = 26164426117086.

The previous prime is 26164426117061. The next prime is 26164426117127. The reversal of 26164426117087 is 78071162446162.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26164426117087 - 2³⁹ = 25614670303199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26164426117187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13082213058543 + 13082213058544.

It is an arithmetic number, because the mean of its divisors is an integer number (13082213058544).

Almost surely, 2^{26164426117087} is an apocalyptic number.

26164426117087 is a deficient number, since it is larger than the sum of its proper divisors (1).

26164426117087 is an equidigital number, since it uses as much as digits as its factorization.

26164426117087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 26164426117087 in words is "twenty-six trillion, one hundred sixty-four billion, four hundred twenty-six million, one hundred seventeen thousand, eighty-seven".