68881812 has 24 divisors (see below), whose sum is σ = 161008512. Its totient is φ = 22920000.

The previous prime is 68881793. The next prime is 68881823. The reversal of 68881812 is 21818886.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2437 + ... + 11987.

It is an arithmetic number, because the mean of its divisors is an integer number (6708688).

Almost surely, 2^68881812 is an apocalyptic number.

It is an amenable number.

68881812 is an abundant number, since it is smaller than the sum of its proper divisors (92126700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68881812 is a wasteful number, since it uses less digits than its factorization.

68881812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10159 (or 10157 counting only the distinct ones).

The product of its digits is 49152, while the sum is 42.

The square root of 68881812 is about 8299.5067323305. The cubic root of 68881812 is about 409.9222775537.

The spelling of 68881812 in words is "sixty-eight million, eight hundred eighty-one thousand, eight hundred twelve".