26306561441 has 2 divisors, whose sum is σ = 26306561442. Its totient is φ = 26306561440.

The previous prime is 26306561429. The next prime is 26306561459. The reversal of 26306561441 is 14416560362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22704161041 + 3602400400 = 150679^2 + 60020^2 .

It is a cyclic number.

It is not a de Polignac number, because 26306561441 - 2¹⁸ = 26306299297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26306561395 and 26306561404.

It is not a weakly prime, because it can be changed into another prime (26306761441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13153280720 + 13153280721.

It is an arithmetic number, because the mean of its divisors is an integer number (13153280721).

Almost surely, 2^26306561441 is an apocalyptic number.

It is an amenable number.

26306561441 is a deficient number, since it is larger than the sum of its proper divisors (1).

26306561441 is an equidigital number, since it uses as much as digits as its factorization.

26306561441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 26306561441 in words is "twenty-six billion, three hundred six million, five hundred sixty-one thousand, four hundred forty-one".