26157446261533 has 2 divisors, whose sum is σ = 26157446261534. Its totient is φ = 26157446261532.

The previous prime is 26157446261521. The next prime is 26157446261579. The reversal of 26157446261533 is 33516264475162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25557089381604 + 600356879929 = 5055402^2 + 774827^2 .

It is a cyclic number.

It is not a de Polignac number, because 26157446261533 - 2⁹ = 26157446261021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26157446261593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13078723130766 + 13078723130767.

It is an arithmetic number, because the mean of its divisors is an integer number (13078723130767).

Almost surely, 2^{26157446261533} is an apocalyptic number.

It is an amenable number.

26157446261533 is a deficient number, since it is larger than the sum of its proper divisors (1).

26157446261533 is an equidigital number, since it uses as much as digits as its factorization.

26157446261533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 55.

The spelling of 26157446261533 in words is "twenty-six trillion, one hundred fifty-seven billion, four hundred forty-six million, two hundred sixty-one thousand, five hundred thirty-three".