842157264188 has 6 divisors (see below), whose sum is σ = 1473775212336. Its totient is φ = 421078632092.

The previous prime is 842157264187. The next prime is 842157264233. The reversal of 842157264188 is 881462751248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842157264187) by changing a digit.

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 as a sum of consecutive naturals, namely, 105269658020 + ... + 105269658027.

It is an arithmetic number, because the mean of its divisors is an integer number (245629202056).

Almost surely, 2^842157264188 is an apocalyptic number.

It is an amenable number.

842157264188 is a deficient number, since it is larger than the sum of its proper divisors (631617948148).

842157264188 is a wasteful number, since it uses less digits than its factorization.

842157264188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210539316051 (or 210539316049 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 56.

The spelling of 842157264188 in words is "eight hundred forty-two billion, one hundred fifty-seven million, two hundred sixty-four thousand, one hundred eighty-eight".