573028991981 has 2 divisors, whose sum is σ = 573028991982. Its totient is φ = 573028991980.

The previous prime is 573028991963. The next prime is 573028992007. The reversal of 573028991981 is 189199820375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553921459081 + 19107532900 = 744259^2 + 138230^2 .

It is a cyclic number.

It is not a de Polignac number, because 573028991981 - 2¹⁰ = 573028990957 is a prime.

It is a super-2 number, since 2×573028991981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (573028991081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286514495990 + 286514495991.

It is an arithmetic number, because the mean of its divisors is an integer number (286514495991).

Almost surely, 2^573028991981 is an apocalyptic number.

It is an amenable number.

573028991981 is a deficient number, since it is larger than the sum of its proper divisors (1).

573028991981 is an equidigital number, since it uses as much as digits as its factorization.

573028991981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 573028991981 in words is "five hundred seventy-three billion, twenty-eight million, nine hundred ninety-one thousand, nine hundred eighty-one".