26168406284959 has 2 divisors, whose sum is σ = 26168406284960. Its totient is φ = 26168406284958.

The previous prime is 26168406284921. The next prime is 26168406284981. The reversal of 26168406284959 is 95948260486162.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26168406284959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26168406281959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13084203142479 + 13084203142480.

It is an arithmetic number, because the mean of its divisors is an integer number (13084203142480).

Almost surely, 2^{26168406284959} is an apocalyptic number.

26168406284959 is a deficient number, since it is larger than the sum of its proper divisors (1).

26168406284959 is an equidigital number, since it uses as much as digits as its factorization.

26168406284959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 358318080, while the sum is 70.

The spelling of 26168406284959 in words is "twenty-six trillion, one hundred sixty-eight billion, four hundred six million, two hundred eighty-four thousand, nine hundred fifty-nine".