68068144 has 10 divisors (see below), whose sum is σ = 131882060. Its totient is φ = 34034064.

The previous prime is 68068139. The next prime is 68068163. The reversal of 68068144 is 44186086.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127114 + ... + 2127145.

It is an arithmetic number, because the mean of its divisors is an integer number (13188206).

Almost surely, 2^68068144 is an apocalyptic number.

It is an amenable number.

68068144 is a deficient number, since it is larger than the sum of its proper divisors (63813916).

68068144 is a wasteful number, since it uses less digits than its factorization.

68068144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254267 (or 4254261 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 68068144 is about 8250.3420535151. The cubic root of 68068144 is about 408.3018079600.

The spelling of 68068144 in words is "sixty-eight million, sixty-eight thousand, one hundred forty-four".