168873418044 has 72 divisors (see below), whose sum is σ = 431751352032. Its totient is φ = 55649894400.

The previous prime is 168873417971. The next prime is 168873418061. The reversal of 168873418044 is 440814378861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2160444 + ... + 2237244.

It is an arithmetic number, because the mean of its divisors is an integer number (5996546556).

Almost surely, 2^168873418044 is an apocalyptic number.

It is an amenable number.

168873418044 is an abundant number, since it is smaller than the sum of its proper divisors (262877933988).

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

168873418044 is a wasteful number, since it uses less digits than its factorization.

168873418044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77507 (or 77502 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 168873418044 in words is "one hundred sixty-eight billion, eight hundred seventy-three million, four hundred eighteen thousand, forty-four".