471641563557497 has 2 divisors, whose sum is σ = 471641563557498. Its totient is φ = 471641563557496.

The previous prime is 471641563557457. The next prime is 471641563557511. The reversal of 471641563557497 is 794755365146174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388286197390441 + 83355366167056 = 19704979^2 + 9129916^2 .

It is a cyclic number.

It is not a de Polignac number, because 471641563557497 - 2⁶ = 471641563557433 is a prime.

It is not a weakly prime, because it can be changed into another prime (471641563557457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235820781778748 + 235820781778749.

It is an arithmetic number, because the mean of its divisors is an integer number (235820781778749).

Almost surely, 2^{471641563557497} is an apocalyptic number.

It is an amenable number.

471641563557497 is a deficient number, since it is larger than the sum of its proper divisors (1).

471641563557497 is an equidigital number, since it uses as much as digits as its factorization.

471641563557497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168000, while the sum is 74.

The spelling of 471641563557497 in words is "four hundred seventy-one trillion, six hundred forty-one billion, five hundred sixty-three million, five hundred fifty-seven thousand, four hundred ninety-seven".