22740026666549 has 2 divisors, whose sum is σ = 22740026666550. Its totient is φ = 22740026666548.

The previous prime is 22740026666521. The next prime is 22740026666569. The reversal of 22740026666549 is 94566662004722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22730105112100 + 9921554449 = 4767610^2 + 99607^2 .

It is a cyclic number.

It is not a de Polignac number, because 22740026666549 - 2²⁸ = 22739758231093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22740026666519) 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, 11370013333274 + 11370013333275.

It is an arithmetic number, because the mean of its divisors is an integer number (11370013333275).

Almost surely, 2^{22740026666549} is an apocalyptic number.

It is an amenable number.

22740026666549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22740026666549 is an equidigital number, since it uses as much as digits as its factorization.

22740026666549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 22740026666549 in words is "twenty-two trillion, seven hundred forty billion, twenty-six million, six hundred sixty-six thousand, five hundred forty-nine".