870871849587 has 12 divisors (see below), whose sum is σ = 1258145192304. Its totient is φ = 580480069680.

The previous prime is 870871849531. The next prime is 870871849607. The reversal of 870871849587 is 785948178078.

It is not a de Polignac number, because 870871849587 - 2²⁰ = 870870801011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870871845587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8375743 + ... + 8479080.

It is an arithmetic number, because the mean of its divisors is an integer number (104845432692).

Almost surely, 2^870871849587 is an apocalyptic number.

870871849587 is a deficient number, since it is larger than the sum of its proper divisors (387273342717).

870871849587 is a wasteful number, since it uses less digits than its factorization.

870871849587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16860570 (or 16860567 counting only the distinct ones).

The product of its (nonzero) digits is 252887040, while the sum is 72.

The spelling of 870871849587 in words is "eight hundred seventy billion, eight hundred seventy-one million, eight hundred forty-nine thousand, five hundred eighty-seven".