168678844 has 6 divisors (see below), whose sum is σ = 295187984. Its totient is φ = 84339420.

The previous prime is 168678821. The next prime is 168678857. The reversal of 168678844 is 448876861.

It is a junction number, because it is equal to n+sod(n) for n = 168678791 and 168678800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21084852 + ... + 21084859.

Almost surely, 2^168678844 is an apocalyptic number.

It is an amenable number.

168678844 is a deficient number, since it is larger than the sum of its proper divisors (126509140).

168678844 is a wasteful number, since it uses less digits than its factorization.

168678844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42169715 (or 42169713 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 52.

The square root of 168678844 is about 12987.6419722750. The cubic root of 168678844 is about 552.5270424852.

It can be divided in two parts, 16867884 and 4, that multiplied together give a triangular number (67471536 = T₁₁₆₁₆).

The spelling of 168678844 in words is "one hundred sixty-eight million, six hundred seventy-eight thousand, eight hundred forty-four".