26135994470329 has 2 divisors, whose sum is σ = 26135994470330. Its totient is φ = 26135994470328.

The previous prime is 26135994470297. The next prime is 26135994470407. The reversal of 26135994470329 is 92307449953162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23697862122025 + 2438132348304 = 4868045^2 + 1561452^2 .

It is a cyclic number.

It is not a de Polignac number, because 26135994470329 - 2⁵ = 26135994470297 is a prime.

It is a super-2 number, since 2×26135994470329² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26135994420329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13067997235164 + 13067997235165.

It is an arithmetic number, because the mean of its divisors is an integer number (13067997235165).

Almost surely, 2^{26135994470329} is an apocalyptic number.

It is an amenable number.

26135994470329 is a deficient number, since it is larger than the sum of its proper divisors (1).

26135994470329 is an equidigital number, since it uses as much as digits as its factorization.

26135994470329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 26135994470329 in words is "twenty-six trillion, one hundred thirty-five billion, nine hundred ninety-four million, four hundred seventy thousand, three hundred twenty-nine".