573220581991 has 2 divisors, whose sum is σ = 573220581992. Its totient is φ = 573220581990.

The previous prime is 573220581953. The next prime is 573220582001. The reversal of 573220581991 is 199185022375.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 573220581991 - 2¹³ = 573220573799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (573220581911) 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, 286610290995 + 286610290996.

It is an arithmetic number, because the mean of its divisors is an integer number (286610290996).

Almost surely, 2^573220581991 is an apocalyptic number.

573220581991 is a deficient number, since it is larger than the sum of its proper divisors (1).

573220581991 is an equidigital number, since it uses as much as digits as its factorization.

573220581991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 573220581991 in words is "five hundred seventy-three billion, two hundred twenty million, five hundred eighty-one thousand, nine hundred ninety-one".