871858534146 has 8 divisors (see below), whose sum is σ = 1743717068304. Its totient is φ = 290619511380.

The previous prime is 871858534123. The next prime is 871858534201. The reversal of 871858534146 is 641435858178.

It is a sphenic number, since it is the product of 3 distinct primes.

871858534146 is an admirable number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 871858534146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72654877840 + ... + 72654877851.

It is an arithmetic number, because the mean of its divisors is an integer number (217964633538).

Almost surely, 2^871858534146 is an apocalyptic number.

871858534146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

871858534146 is a wasteful number, since it uses less digits than its factorization.

871858534146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145309755696.

The product of its digits is 25804800, while the sum is 60.

The spelling of 871858534146 in words is "eight hundred seventy-one billion, eight hundred fifty-eight million, five hundred thirty-four thousand, one hundred forty-six".