68643112 has 8 divisors (see below), whose sum is σ = 128705850. Its totient is φ = 34321552.

The previous prime is 68643097. The next prime is 68643121. The reversal of 68643112 is 21134686.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61058596 + 7584516 = 7814^2 + 2754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4290187 + ... + 4290202.

Almost surely, 2^68643112 is an apocalyptic number.

It is an amenable number.

68643112 is a deficient number, since it is larger than the sum of its proper divisors (60062738).

68643112 is a wasteful number, since it uses less digits than its factorization.

68643112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580395 (or 8580391 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 68643112 is about 8285.1138797243. The cubic root of 68643112 is about 409.4482206656.

Adding to 68643112 its reverse (21134686), we get a palindrome (89777798).

The spelling of 68643112 in words is "sixty-eight million, six hundred forty-three thousand, one hundred twelve".