68163686 has 8 divisors (see below), whose sum is σ = 104623464. Its totient is φ = 33289200.

The previous prime is 68163679. The next prime is 68163701. The reversal of 68163686 is 68636186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396215 + ... + 396386.

It is an arithmetic number, because the mean of its divisors is an integer number (13077933).

Almost surely, 2^68163686 is an apocalyptic number.

68163686 is a deficient number, since it is larger than the sum of its proper divisors (36459778).

68163686 is a wasteful number, since it uses less digits than its factorization.

68163686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792646.

The product of its digits is 248832, while the sum is 44.

The square root of 68163686 is about 8256.1302073066. The cubic root of 68163686 is about 408.4927525610.

The spelling of 68163686 in words is "sixty-eight million, one hundred sixty-three thousand, six hundred eighty-six".