871222222178 has 64 divisors (see below), whose sum is σ = 1666838476800. Its totient is φ = 331685370240.

The previous prime is 871222222159. The next prime is 871222222201.

871222222178 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1230278 + ... + 1804446.

It is an arithmetic number, because the mean of its divisors is an integer number (26044351200).

Almost surely, 2^871222222178 is an apocalyptic number.

871222222178 is a deficient number, since it is larger than the sum of its proper divisors (795616254622).

871222222178 is a wasteful number, since it uses less digits than its factorization.

871222222178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574415.

The product of its digits is 200704, while the sum is 44.

The spelling of 871222222178 in words is "eight hundred seventy-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred seventy-eight".