68193868 has 12 divisors (see below), whose sum is σ = 126359352. Its totient is φ = 32091200.

The previous prime is 68193863. The next prime is 68193871. The reversal of 68193868 is 86839186.

It is not an unprimeable number, because it can be changed into a prime (68193863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501358 + ... + 501493.

It is an arithmetic number, because the mean of its divisors is an integer number (10529946).

Almost surely, 2^68193868 is an apocalyptic number.

68193868 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68193868 is a deficient number, since it is larger than the sum of its proper divisors (58165484).

68193868 is a wasteful number, since it uses less digits than its factorization.

68193868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002872 (or 1002870 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 68193868 is about 8257.9578589382. The cubic root of 68193868 is about 408.5530354364.

It can be divided in two parts, 681 and 93868, that added together give a palindrome (94549).

The spelling of 68193868 in words is "sixty-eight million, one hundred ninety-three thousand, eight hundred sixty-eight".