871897448895 has 16 divisors (see below), whose sum is σ = 1521857365632. Its totient is φ = 422738156960.

The previous prime is 871897448869. The next prime is 871897448911. The reversal of 871897448895 is 598844798178.

It is not a de Polignac number, because 871897448895 - 2⁶ = 871897448831 is a prime.

It is a super-2 number, since 2×871897448895² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 871897448895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2642113317 + ... + 2642113646.

It is an arithmetic number, because the mean of its divisors is an integer number (95116085352).

Almost surely, 2^871897448895 is an apocalyptic number.

871897448895 is a deficient number, since it is larger than the sum of its proper divisors (649959916737).

871897448895 is a wasteful number, since it uses less digits than its factorization.

871897448895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284226982.

The product of its digits is 1300561920, while the sum is 78.

The spelling of 871897448895 in words is "eight hundred seventy-one billion, eight hundred ninety-seven million, four hundred forty-eight thousand, eight hundred ninety-five".