68385866 has 16 divisors (see below), whose sum is σ = 108797256. Its totient is φ = 32126976.

The previous prime is 68385859. The next prime is 68385871. The reversal of 68385866 is 66858386.

It can be written as a sum of positive squares in 4 ways, for example, as 67584841 + 801025 = 8221^2 + 895^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24410 + ... + 27066.

Almost surely, 2^68385866 is an apocalyptic number.

68385866 is a deficient number, since it is larger than the sum of its proper divisors (40411390).

68385866 is a wasteful number, since it uses less digits than its factorization.

68385866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433.

The product of its digits is 1658880, while the sum is 50.

The square root of 68385866 is about 8269.5747169972. The cubic root of 68385866 is about 408.9360995174.

The spelling of 68385866 in words is "sixty-eight million, three hundred eighty-five thousand, eight hundred sixty-six".