68043916 has 12 divisors (see below), whose sum is σ = 119257488. Its totient is φ = 33970352.

The previous prime is 68043907. The next prime is 68043917. The reversal of 68043916 is 61934086.

It is not an unprimeable number, because it can be changed into a prime (68043917) 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, 9856 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (9938124).

Almost surely, 2^68043916 is an apocalyptic number.

It is an amenable number.

68043916 is a deficient number, since it is larger than the sum of its proper divisors (51213572).

68043916 is a wasteful number, since it uses less digits than its factorization.

68043916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25808 (or 25806 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68043916 is about 8248.8736200769. The cubic root of 68043916 is about 408.2533589130.

The spelling of 68043916 in words is "sixty-eight million, forty-three thousand, nine hundred sixteen".