871959928443 has 4 divisors (see below), whose sum is σ = 1162613237928. Its totient is φ = 581306618960.

The previous prime is 871959928421. The next prime is 871959928537. The reversal of 871959928443 is 344829959178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 871959928443 - 2⁶ = 871959928379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871959928403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145326654738 + ... + 145326654743.

It is an arithmetic number, because the mean of its divisors is an integer number (290653309482).

Almost surely, 2^871959928443 is an apocalyptic number.

871959928443 is a deficient number, since it is larger than the sum of its proper divisors (290653309485).

871959928443 is a wasteful number, since it uses less digits than its factorization.

871959928443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290653309484.

The product of its digits is 156764160, while the sum is 69.

The spelling of 871959928443 in words is "eight hundred seventy-one billion, nine hundred fifty-nine million, nine hundred twenty-eight thousand, four hundred forty-three".