84172187168 has 48 divisors (see below), whose sum is σ = 167645933280. Its totient is φ = 41595840000.

The previous prime is 84172187161. The next prime is 84172187189. The reversal of 84172187168 is 86178127148.

It is not an unprimeable number, because it can be changed into a prime (84172187161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9254303 + ... + 9263393.

It is an arithmetic number, because the mean of its divisors is an integer number (3492623610).

Almost surely, 2^84172187168 is an apocalyptic number.

It is an amenable number.

84172187168 is a deficient number, since it is larger than the sum of its proper divisors (83473746112).

84172187168 is a wasteful number, since it uses less digits than its factorization.

84172187168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12441 (or 12433 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 53.

The spelling of 84172187168 in words is "eighty-four billion, one hundred seventy-two million, one hundred eighty-seven thousand, one hundred sixty-eight".