871473284557 has 2 divisors, whose sum is σ = 871473284558. Its totient is φ = 871473284556.

The previous prime is 871473284531. The next prime is 871473284567. The reversal of 871473284557 is 755482374178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871358773156 + 114511401 = 933466^2 + 10701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-871473284557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 871473284495 and 871473284504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871473284567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435736642278 + 435736642279.

It is an arithmetic number, because the mean of its divisors is an integer number (435736642279).

Almost surely, 2^871473284557 is an apocalyptic number.

It is an amenable number.

871473284557 is a deficient number, since it is larger than the sum of its proper divisors (1).

871473284557 is an equidigital number, since it uses as much as digits as its factorization.

871473284557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52684800, while the sum is 61.

The spelling of 871473284557 in words is "eight hundred seventy-one billion, four hundred seventy-three million, two hundred eighty-four thousand, five hundred fifty-seven".