523979568089 has 2 divisors, whose sum is σ = 523979568090. Its totient is φ = 523979568088.

The previous prime is 523979568029. The next prime is 523979568131. The reversal of 523979568089 is 980865979325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336916398025 + 187063170064 = 580445^2 + 432508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523979568089 is a prime.

It is a super-2 number, since 2×523979568089² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523979568029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261989784044 + 261989784045.

It is an arithmetic number, because the mean of its divisors is an integer number (261989784045).

Almost surely, 2^523979568089 is an apocalyptic number.

It is an amenable number.

523979568089 is a deficient number, since it is larger than the sum of its proper divisors (1).

523979568089 is an equidigital number, since it uses as much as digits as its factorization.

523979568089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 293932800, while the sum is 71.

The spelling of 523979568089 in words is "five hundred twenty-three billion, nine hundred seventy-nine million, five hundred sixty-eight thousand, eighty-nine".