84534832172 has 24 divisors (see below), whose sum is σ = 169310887200. Its totient is φ = 36177523200.

The previous prime is 84534832159. The next prime is 84534832189. The reversal of 84534832172 is 27123843548.

It is a super-2 number, since 2×84534832172² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2133797 + ... + 2173052.

It is an arithmetic number, because the mean of its divisors is an integer number (7054620300).

Almost surely, 2^84534832172 is an apocalyptic number.

It is an amenable number.

84534832172 is an abundant number, since it is smaller than the sum of its proper divisors (84776055028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84534832172 is a wasteful number, since it uses less digits than its factorization.

84534832172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307561 (or 4307559 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The spelling of 84534832172 in words is "eighty-four billion, five hundred thirty-four million, eight hundred thirty-two thousand, one hundred seventy-two".