870022830085 has 4 divisors (see below), whose sum is σ = 1044027396108. Its totient is φ = 696018264064.

The previous prime is 870022830077. The next prime is 870022830097. The reversal of 870022830085 is 580038220078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218783514049 + 651239316036 = 467743^2 + 806994^2 .

It is a cyclic number.

It is not a de Polignac number, because 870022830085 - 2³ = 870022830077 is a prime.

It is a super-2 number, since 2×870022830085² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87002283004 + ... + 87002283013.

It is an arithmetic number, because the mean of its divisors is an integer number (261006849027).

Almost surely, 2^870022830085 is an apocalyptic number.

It is an amenable number.

870022830085 is a deficient number, since it is larger than the sum of its proper divisors (174004566023).

870022830085 is a wasteful number, since it uses less digits than its factorization.

870022830085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174004566022.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 870022830085 in words is "eight hundred seventy billion, twenty-two million, eight hundred thirty thousand, eighty-five".