506465700569497 has 2 divisors, whose sum is σ = 506465700569498. Its totient is φ = 506465700569496.

The previous prime is 506465700569453. The next prime is 506465700569531. The reversal of 506465700569497 is 794965007564605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472538209347136 + 33927491222361 = 21737944^2 + 5824731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506465700569497 is a prime.

It is not a weakly prime, because it can be changed into another prime (506465700569897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253232850284748 + 253232850284749.

It is an arithmetic number, because the mean of its divisors is an integer number (253232850284749).

Almost surely, 2^{506465700569497} is an apocalyptic number.

It is an amenable number.

506465700569497 is a deficient number, since it is larger than the sum of its proper divisors (1).

506465700569497 is an equidigital number, since it uses as much as digits as its factorization.

506465700569497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608000, while the sum is 73.

The spelling of 506465700569497 in words is "five hundred six trillion, four hundred sixty-five billion, seven hundred million, five hundred sixty-nine thousand, four hundred ninety-seven".