573449121927991 has 2 divisors, whose sum is σ = 573449121927992. Its totient is φ = 573449121927990.

The previous prime is 573449121927989. The next prime is 573449121928031. The reversal of 573449121927991 is 199729121944375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 573449121927991 - 2¹ = 573449121927989 is a prime.

Together with 573449121927989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (573449121927791) 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, 286724560963995 + 286724560963996.

It is an arithmetic number, because the mean of its divisors is an integer number (286724560963996).

Almost surely, 2^{573449121927991} is an apocalyptic number.

573449121927991 is a deficient number, since it is larger than the sum of its proper divisors (1).

573449121927991 is an equidigital number, since it uses as much as digits as its factorization.

573449121927991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308629440, while the sum is 73.

The spelling of 573449121927991 in words is "five hundred seventy-three trillion, four hundred forty-nine billion, one hundred twenty-one million, nine hundred twenty-seven thousand, nine hundred ninety-one".