68818672 has 20 divisors (see below), whose sum is σ = 143593240. Its totient is φ = 31762368.

The previous prime is 68818663. The next prime is 68818697. The reversal of 68818672 is 27681886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165222 + ... + 165637.

It is an arithmetic number, because the mean of its divisors is an integer number (7179662).

Almost surely, 2^68818672 is an apocalyptic number.

It is an amenable number.

68818672 is an abundant number, since it is smaller than the sum of its proper divisors (74774568).

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

68818672 is a wasteful number, since it uses less digits than its factorization.

68818672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330880 (or 330874 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 68818672 is about 8295.7020197208. The cubic root of 68818672 is about 409.7969885298.

The spelling of 68818672 in words is "sixty-eight million, eight hundred eighteen thousand, six hundred seventy-two".