870646142845185 has 64 divisors (see below), whose sum is σ = 1656456411502080. Its totient is φ = 382063892152320.

The previous prime is 870646142845183. The next prime is 870646142845229. The reversal of 870646142845185 is 581548241646078.

It is not a de Polignac number, because 870646142845185 - 2¹ = 870646142845183 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (870646142845183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 825850336 + ... + 826903905.

It is an arithmetic number, because the mean of its divisors is an integer number (25882131429720).

Almost surely, 2^{870646142845185} is an apocalyptic number.

It is an amenable number.

870646142845185 is a deficient number, since it is larger than the sum of its proper divisors (785810268656895).

870646142845185 is a wasteful number, since it uses less digits than its factorization.

870646142845185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652754458.

The product of its (nonzero) digits is 412876800, while the sum is 69.

The spelling of 870646142845185 in words is "eight hundred seventy trillion, six hundred forty-six billion, one hundred forty-two million, eight hundred forty-five thousand, one hundred eighty-five".