68081912 has 16 divisors (see below), whose sum is σ = 129192840. Its totient is φ = 33630496.

The previous prime is 68081911. The next prime is 68081933. The reversal of 68081912 is 21918086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68081911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50603 + ... + 51930.

Almost surely, 2^68081912 is an apocalyptic number.

It is an amenable number.

68081912 is a deficient number, since it is larger than the sum of its proper divisors (61110928).

68081912 is a wasteful number, since it uses less digits than its factorization.

68081912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102622 (or 102618 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 68081912 is about 8251.1764009746. The cubic root of 68081912 is about 408.3293348861.

Adding to 68081912 its reverse (21918086), we get a palindrome (89999998).

The spelling of 68081912 in words is "sixty-eight million, eighty-one thousand, nine hundred twelve".