68544994 has 16 divisors (see below), whose sum is σ = 117748800. Its totient is φ = 29315664.

The previous prime is 68544943. The next prime is 68544997. The reversal of 68544994 is 49944586.

It is not an unprimeable number, because it can be changed into a prime (68544997) by changing a digit.

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, 2317 + ... + 11935.

It is an arithmetic number, because the mean of its divisors is an integer number (7359300).

Almost surely, 2^68544994 is an apocalyptic number.

68544994 is a deficient number, since it is larger than the sum of its proper divisors (49203806).

68544994 is a wasteful number, since it uses less digits than its factorization.

68544994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137.

The product of its digits is 1244160, while the sum is 49.

The square root of 68544994 is about 8279.1904193586. The cubic root of 68544994 is about 409.2530401337.

The spelling of 68544994 in words is "sixty-eight million, five hundred forty-four thousand, nine hundred ninety-four".