68444871 has 16 divisors (see below), whose sum is σ = 100759680. Its totient is φ = 40980320.

The previous prime is 68444861. The next prime is 68444881. The reversal of 68444871 is 17844486.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68444861) and next prime (68444881).

It is a cyclic number.

It is not a de Polignac number, because 68444871 - 2¹⁰ = 68443847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68444801) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9756 + ... + 15233.

It is an arithmetic number, because the mean of its divisors is an integer number (6297480).

Almost surely, 2^68444871 is an apocalyptic number.

68444871 is a deficient number, since it is larger than the sum of its proper divisors (32314809).

68444871 is a wasteful number, since it uses less digits than its factorization.

68444871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25086.

The product of its digits is 172032, while the sum is 42.

The square root of 68444871 is about 8273.1415435734. The cubic root of 68444871 is about 409.0536790676.

The spelling of 68444871 in words is "sixty-eight million, four hundred forty-four thousand, eight hundred seventy-one".