548621805841 has 2 divisors, whose sum is σ = 548621805842. Its totient is φ = 548621805840.

The previous prime is 548621805791. The next prime is 548621805857. The reversal of 548621805841 is 148508126845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421725555216 + 126896250625 = 649404^2 + 356225^2 .

It is a cyclic number.

It is not a de Polignac number, because 548621805841 - 2²⁷ = 548487588113 is a prime.

It is not a weakly prime, because it can be changed into another prime (548621805871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274310902920 + 274310902921.

It is an arithmetic number, because the mean of its divisors is an integer number (274310902921).

Almost surely, 2^548621805841 is an apocalyptic number.

It is an amenable number.

548621805841 is a deficient number, since it is larger than the sum of its proper divisors (1).

548621805841 is an equidigital number, since it uses as much as digits as its factorization.

548621805841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 548621805841 in words is "five hundred forty-eight billion, six hundred twenty-one million, eight hundred five thousand, eight hundred forty-one".