871458862788 has 18 divisors (see below), whose sum is σ = 2202854347694. Its totient is φ = 290486287584.

The previous prime is 871458862763. The next prime is 871458862811. The reversal of 871458862788 is 887268854178.

871458862788 is a `hidden beast` number, since 8 + 7 + 14 + 588 + 6 + 27 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 776950576704 + 94508286084 = 881448^2 + 307422^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×871458862788² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12103595281 + ... + 12103595352.

Almost surely, 2^871458862788 is an apocalyptic number.

It is an amenable number.

871458862788 is an abundant number, since it is smaller than the sum of its proper divisors (1331395484906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871458862788 is a wasteful number, since it uses less digits than its factorization.

871458862788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24207190643 (or 24207190638 counting only the distinct ones).

The product of its digits is 385351680, while the sum is 72.

The spelling of 871458862788 in words is "eight hundred seventy-one billion, four hundred fifty-eight million, eight hundred sixty-two thousand, seven hundred eighty-eight".