871573008643 has 2 divisors, whose sum is σ = 871573008644. Its totient is φ = 871573008642.

The previous prime is 871573008541. The next prime is 871573008661. The reversal of 871573008643 is 346800375178.

871573008643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 871573008643 - 2²⁵ = 871539454211 is a prime.

It is not a weakly prime, because it can be changed into another prime (871573003643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435786504321 + 435786504322.

It is an arithmetic number, because the mean of its divisors is an integer number (435786504322).

Almost surely, 2^871573008643 is an apocalyptic number.

871573008643 is a deficient number, since it is larger than the sum of its proper divisors (1).

871573008643 is an equidigital number, since it uses as much as digits as its factorization.

871573008643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 871573008643 in words is "eight hundred seventy-one billion, five hundred seventy-three million, eight thousand, six hundred forty-three".