68343544 has 8 divisors (see below), whose sum is σ = 128144160. Its totient is φ = 34171768.

The previous prime is 68343529. The next prime is 68343563. The reversal of 68343544 is 44534386.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4271464 + ... + 4271479.

It is an arithmetic number, because the mean of its divisors is an integer number (16018020).

Almost surely, 2^68343544 is an apocalyptic number.

It is an amenable number.

68343544 is a deficient number, since it is larger than the sum of its proper divisors (59800616).

68343544 is a wasteful number, since it uses less digits than its factorization.

68343544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542949 (or 8542945 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 68343544 is about 8267.0154227508. The cubic root of 68343544 is about 408.8517226029.

The spelling of 68343544 in words is "sixty-eight million, three hundred forty-three thousand, five hundred forty-four".