68421068 has 12 divisors (see below), whose sum is σ = 119882280. Its totient is φ = 34168992.

The previous prime is 68421047. The next prime is 68421079. The reversal of 68421068 is 86012486.

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, 6521 + ... + 13392.

It is an arithmetic number, because the mean of its divisors is an integer number (9990190).

Almost surely, 2^68421068 is an apocalyptic number.

It is an amenable number.

68421068 is a deficient number, since it is larger than the sum of its proper divisors (51461212).

68421068 is a wasteful number, since it uses less digits than its factorization.

68421068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20776 (or 20774 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 68421068 is about 8271.7028476608. The cubic root of 68421068 is about 409.0062548486.

The spelling of 68421068 in words is "sixty-eight million, four hundred twenty-one thousand, sixty-eight".