871436582891 has 8 divisors (see below), whose sum is σ = 1016252575200. Its totient is φ = 746945642184.

The previous prime is 871436582873. The next prime is 871436582927. The reversal of 871436582891 is 198285634178.

It is not a de Polignac number, because 871436582891 - 2⁶ = 871436582827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871436582801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270315376 + ... + 1270316061.

It is an arithmetic number, because the mean of its divisors is an integer number (127031571900).

Almost surely, 2^871436582891 is an apocalyptic number.

871436582891 is a deficient number, since it is larger than the sum of its proper divisors (144815992309).

871436582891 is an equidigital number, since it uses as much as digits as its factorization.

871436582891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540631458 (or 2540631444 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 62.

The spelling of 871436582891 in words is "eight hundred seventy-one billion, four hundred thirty-six million, five hundred eighty-two thousand, eight hundred ninety-one".