871047671481 has 24 divisors (see below), whose sum is σ = 1355090687496. Its totient is φ = 535978840320.

The previous prime is 871047671467. The next prime is 871047671503. The reversal of 871047671481 is 184176740178.

871047671481 is a `hidden beast` number, since 87 + 1 + 0 + 476 + 7 + 14 + 81 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 62817903225 + 808229768256 = 250635^2 + 899016^2 .

It is not a de Polignac number, because 871047671481 - 2⁷ = 871047671353 is a prime.

It is a super-2 number, since 2×871047671481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (871047671581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 916101 + ... + 1606653.

It is an arithmetic number, because the mean of its divisors is an integer number (56462111979).

Almost surely, 2^871047671481 is an apocalyptic number.

It is an amenable number.

871047671481 is a deficient number, since it is larger than the sum of its proper divisors (484043016015).

871047671481 is a wasteful number, since it uses less digits than its factorization.

871047671481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701353 (or 701350 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 871047671481 in words is "eight hundred seventy-one billion, forty-seven million, six hundred seventy-one thousand, four hundred eighty-one".