573835689781 has 2 divisors, whose sum is σ = 573835689782. Its totient is φ = 573835689780.

The previous prime is 573835689719. The next prime is 573835689799. The reversal of 573835689781 is 187986538375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552383400625 + 21452289156 = 743225^2 + 146466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-573835689781 is a prime.

It is a super-2 number, since 2×573835689781² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 573835689781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (573835681781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286917844890 + 286917844891.

It is an arithmetic number, because the mean of its divisors is an integer number (286917844891).

Almost surely, 2^573835689781 is an apocalyptic number.

It is an amenable number.

573835689781 is a deficient number, since it is larger than the sum of its proper divisors (1).

573835689781 is an equidigital number, since it uses as much as digits as its factorization.

573835689781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 304819200, while the sum is 70.

The spelling of 573835689781 in words is "five hundred seventy-three billion, eight hundred thirty-five million, six hundred eighty-nine thousand, seven hundred eighty-one".