506231601435977 has 2 divisors, whose sum is σ = 506231601435978. Its totient is φ = 506231601435976.

The previous prime is 506231601435971. The next prime is 506231601436153. The reversal of 506231601435977 is 779534106132605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360130931677456 + 146100669758521 = 18977116^2 + 12087211^2 .

It is a cyclic number.

It is not a de Polignac number, because 506231601435977 - 2¹⁸ = 506231601173833 is a prime.

It is not a weakly prime, because it can be changed into another prime (506231601435971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253115800717988 + 253115800717989.

It is an arithmetic number, because the mean of its divisors is an integer number (253115800717989).

Almost surely, 2^{506231601435977} is an apocalyptic number.

It is an amenable number.

506231601435977 is a deficient number, since it is larger than the sum of its proper divisors (1).

506231601435977 is an equidigital number, since it uses as much as digits as its factorization.

506231601435977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 59.

The spelling of 506231601435977 in words is "five hundred six trillion, two hundred thirty-one billion, six hundred one million, four hundred thirty-five thousand, nine hundred seventy-seven".