26257670207959 has 2 divisors, whose sum is σ = 26257670207960. Its totient is φ = 26257670207958.

The previous prime is 26257670207953. The next prime is 26257670208019. The reversal of 26257670207959 is 95970207675262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26257670207959 - 2¹¹ = 26257670205911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26257670207894 and 26257670207903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26257670207953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13128835103979 + 13128835103980.

It is an arithmetic number, because the mean of its divisors is an integer number (13128835103980).

Almost surely, 2^{26257670207959} is an apocalyptic number.

26257670207959 is a deficient number, since it is larger than the sum of its proper divisors (1).

26257670207959 is an equidigital number, since it uses as much as digits as its factorization.

26257670207959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200037600, while the sum is 67.

The spelling of 26257670207959 in words is "twenty-six trillion, two hundred fifty-seven billion, six hundred seventy million, two hundred seven thousand, nine hundred fifty-nine".