26304304478213 has 2 divisors, whose sum is σ = 26304304478214. Its totient is φ = 26304304478212.

The previous prime is 26304304478141. The next prime is 26304304478267. The reversal of 26304304478213 is 31287440340362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26197844534689 + 106459943524 = 5118383^2 + 326282^2 .

It is a cyclic number.

It is not a de Polignac number, because 26304304478213 - 2¹⁶ = 26304304412677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26304304478113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13152152239106 + 13152152239107.

It is an arithmetic number, because the mean of its divisors is an integer number (13152152239107).

Almost surely, 2^{26304304478213} is an apocalyptic number.

It is an amenable number.

26304304478213 is a deficient number, since it is larger than the sum of its proper divisors (1).

26304304478213 is an equidigital number, since it uses as much as digits as its factorization.

26304304478213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 26304304478213 in words is "twenty-six trillion, three hundred four billion, three hundred four million, four hundred seventy-eight thousand, two hundred thirteen".