168423354686 has 48 divisors (see below), whose sum is σ = 275490418896. Its totient is φ = 77167017984.

The previous prime is 168423354679. The next prime is 168423354713. The reversal of 168423354686 is 686453324861.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 7868030 + ... + 7889406.

It is an arithmetic number, because the mean of its divisors is an integer number (5739383727).

Almost surely, 2^168423354686 is an apocalyptic number.

168423354686 is a deficient number, since it is larger than the sum of its proper divisors (107067064210).

168423354686 is a wasteful number, since it uses less digits than its factorization.

168423354686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21773 (or 21756 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 56.

The spelling of 168423354686 in words is "one hundred sixty-eight billion, four hundred twenty-three million, three hundred fifty-four thousand, six hundred eighty-six".