68544938 has 16 divisors (see below), whose sum is σ = 128188224. Its totient is φ = 26705760.

The previous prime is 68544887. The next prime is 68544943. The reversal of 68544938 is 83944586.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68544892 and 68544901.

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 in 7 ways as a sum of consecutive naturals, for example, 222395 + ... + 222702.

It is an arithmetic number, because the mean of its divisors is an integer number (8011764).

Almost surely, 2^68544938 is an apocalyptic number.

68544938 is a deficient number, since it is larger than the sum of its proper divisors (59643286).

68544938 is a wasteful number, since it uses less digits than its factorization.

68544938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445117.

The product of its digits is 829440, while the sum is 47.

The square root of 68544938 is about 8279.1870373848. The cubic root of 68544938 is about 409.2529286830.

The spelling of 68544938 in words is "sixty-eight million, five hundred forty-four thousand, nine hundred thirty-eight".