506042136577 has 2 divisors, whose sum is σ = 506042136578. Its totient is φ = 506042136576.

The previous prime is 506042136569. The next prime is 506042136647. The reversal of 506042136577 is 775631240605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422063312896 + 83978823681 = 649664^2 + 289791^2 .

It is a cyclic number.

It is not a de Polignac number, because 506042136577 - 2³ = 506042136569 is a prime.

It is not a weakly prime, because it can be changed into another prime (506042136077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253021068288 + 253021068289.

It is an arithmetic number, because the mean of its divisors is an integer number (253021068289).

Almost surely, 2^506042136577 is an apocalyptic number.

It is an amenable number.

506042136577 is a deficient number, since it is larger than the sum of its proper divisors (1).

506042136577 is an equidigital number, since it uses as much as digits as its factorization.

506042136577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 506042136577 in words is "five hundred six billion, forty-two million, one hundred thirty-six thousand, five hundred seventy-seven".