471641563557517 has 2 divisors, whose sum is σ = 471641563557518. Its totient is φ = 471641563557516.

The previous prime is 471641563557511. The next prime is 471641563557587. The reversal of 471641563557517 is 715755365146174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446537164793476 + 25104398764041 = 21131426^2 + 5010429^2 .

It is a cyclic number.

It is not a de Polignac number, because 471641563557517 - 2¹¹ = 471641563555469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471641563557511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235820781778758 + 235820781778759.

It is an arithmetic number, because the mean of its divisors is an integer number (235820781778759).

Almost surely, 2^{471641563557517} is an apocalyptic number.

It is an amenable number.

471641563557517 is a deficient number, since it is larger than the sum of its proper divisors (1).

471641563557517 is an equidigital number, since it uses as much as digits as its factorization.

471641563557517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440000, while the sum is 67.

The spelling of 471641563557517 in words is "four hundred seventy-one trillion, six hundred forty-one billion, five hundred sixty-three million, five hundred fifty-seven thousand, five hundred seventeen".