26434606340413 has 2 divisors, whose sum is σ = 26434606340414. Its totient is φ = 26434606340412.

The previous prime is 26434606340383. The next prime is 26434606340473. The reversal of 26434606340413 is 31404360643462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22828777534809 + 3605828805604 = 4777947^2 + 1898902^2 .

It is a cyclic number.

It is not a de Polignac number, because 26434606340413 - 2⁵ = 26434606340381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26434606340473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13217303170206 + 13217303170207.

It is an arithmetic number, because the mean of its divisors is an integer number (13217303170207).

Almost surely, 2^{26434606340413} is an apocalyptic number.

It is an amenable number.

26434606340413 is a deficient number, since it is larger than the sum of its proper divisors (1).

26434606340413 is an equidigital number, since it uses as much as digits as its factorization.

26434606340413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 46.

Adding to 26434606340413 its reverse (31404360643462), we get a palindrome (57838966983875).

The spelling of 26434606340413 in words is "twenty-six trillion, four hundred thirty-four billion, six hundred six million, three hundred forty thousand, four hundred thirteen".