506143355360977 has 2 divisors, whose sum is σ = 506143355360978. Its totient is φ = 506143355360976.

The previous prime is 506143355360957. The next prime is 506143355360983. The reversal of 506143355360977 is 779063553341605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254757383576641 + 251385971784336 = 15961121^2 + 15855156^2 .

It is a cyclic number.

It is not a de Polignac number, because 506143355360977 - 2¹⁵ = 506143355328209 is a prime.

It is not a weakly prime, because it can be changed into another prime (506143355360947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253071677680488 + 253071677680489.

It is an arithmetic number, because the mean of its divisors is an integer number (253071677680489).

Almost surely, 2^{506143355360977} is an apocalyptic number.

It is an amenable number.

506143355360977 is a deficient number, since it is larger than the sum of its proper divisors (1).

506143355360977 is an equidigital number, since it uses as much as digits as its factorization.

506143355360977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326000, while the sum is 64.

The spelling of 506143355360977 in words is "five hundred six trillion, one hundred forty-three billion, three hundred fifty-five million, three hundred sixty thousand, nine hundred seventy-seven".