548488884821 has 2 divisors, whose sum is σ = 548488884822. Its totient is φ = 548488884820.

The previous prime is 548488884773. The next prime is 548488884847. The reversal of 548488884821 is 128488884845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403365982321 + 145122902500 = 635111^2 + 380950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548488884821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548488884421) 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, 274244442410 + 274244442411.

It is an arithmetic number, because the mean of its divisors is an integer number (274244442411).

Almost surely, 2^548488884821 is an apocalyptic number.

It is an amenable number.

548488884821 is a deficient number, since it is larger than the sum of its proper divisors (1).

548488884821 is an equidigital number, since it uses as much as digits as its factorization.

548488884821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 167772160, while the sum is 68.

The spelling of 548488884821 in words is "five hundred forty-eight billion, four hundred eighty-eight million, eight hundred eighty-four thousand, eight hundred twenty-one".