68644118 has 8 divisors (see below), whose sum is σ = 103061712. Its totient is φ = 34290216.

The previous prime is 68644091. The next prime is 68644129. The reversal of 68644118 is 81144686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 in 3 ways as a sum of consecutive naturals, for example, 13130 + ... + 17597.

It is an arithmetic number, because the mean of its divisors is an integer number (12882714).

Almost surely, 2^68644118 is an apocalyptic number.

68644118 is a deficient number, since it is larger than the sum of its proper divisors (34417594).

68644118 is a wasteful number, since it uses less digits than its factorization.

68644118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31846.

The product of its digits is 36864, while the sum is 38.

The square root of 68644118 is about 8285.1745907977. The cubic root of 68644118 is about 409.4502208804.

The spelling of 68644118 in words is "sixty-eight million, six hundred forty-four thousand, one hundred eighteen".