871413243223238 has 4 divisors (see below), whose sum is σ = 1307119864834860. Its totient is φ = 435706621611618.

The previous prime is 871413243223183. The next prime is 871413243223249. The reversal of 871413243223238 is 832322342314178.

It is a happy number.

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

It is a super-2 number, since 2×871413243223238² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 871413243223238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217853310805808 + ... + 217853310805811.

It is an arithmetic number, because the mean of its divisors is an integer number (326779966208715).

Almost surely, 2^{871413243223238} is an apocalyptic number.

871413243223238 is a deficient number, since it is larger than the sum of its proper divisors (435706621611622).

871413243223238 is a wasteful number, since it uses less digits than its factorization.

871413243223238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435706621611621.

The product of its digits is 9289728, while the sum is 53.

The spelling of 871413243223238 in words is "eight hundred seventy-one trillion, four hundred thirteen billion, two hundred forty-three million, two hundred twenty-three thousand, two hundred thirty-eight".