871560117258 has 16 divisors (see below), whose sum is σ = 1743172897536. Its totient is φ = 290511261920.

The previous prime is 871560117227. The next prime is 871560117313. The reversal of 871560117258 is 852711065178.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 871560117258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977498 + ... + 2377733.

It is an arithmetic number, because the mean of its divisors is an integer number (108948306096).

Almost surely, 2^871560117258 is an apocalyptic number.

871560117258 is an abundant number, since it is smaller than the sum of its proper divisors (871612780278).

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

871560117258 is a wasteful number, since it uses less digits than its factorization.

871560117258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388589.

The product of its (nonzero) digits is 940800, while the sum is 51.

The spelling of 871560117258 in words is "eight hundred seventy-one billion, five hundred sixty million, one hundred seventeen thousand, two hundred fifty-eight".