871065824256157 has 4 divisors (see below), whose sum is σ = 873439300616896. Its totient is φ = 868692347895420.

The previous prime is 871065824256139. The next prime is 871065824256169. The reversal of 871065824256157 is 751652428560178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 871065824256157 - 2⁷ = 871065824256029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 871065824256092 and 871065824256101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871065824256557) 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 in 3 ways as a sum of consecutive naturals, for example, 1186738179819 + ... + 1186738180552.

It is an arithmetic number, because the mean of its divisors is an integer number (218359825154224).

Almost surely, 2^{871065824256157} is an apocalyptic number.

It is an amenable number.

871065824256157 is a deficient number, since it is larger than the sum of its proper divisors (2373476360739).

871065824256157 is a wasteful number, since it uses less digits than its factorization.

871065824256157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373476360738.

The product of its (nonzero) digits is 225792000, while the sum is 67.

The spelling of 871065824256157 in words is "eight hundred seventy-one trillion, sixty-five billion, eight hundred twenty-four million, two hundred fifty-six thousand, one hundred fifty-seven".