68363138 has 8 divisors (see below), whose sum is σ = 103198332. Its totient is φ = 33963696.

The previous prime is 68363129. The next prime is 68363173. The reversal of 68363138 is 83136386.

It can be written as a sum of positive squares in 2 ways, for example, as 60109009 + 8254129 = 7753^2 + 2873^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108545 + ... + 109172.

Almost surely, 2^68363138 is an apocalyptic number.

68363138 is a deficient number, since it is larger than the sum of its proper divisors (34835194).

68363138 is a wasteful number, since it uses less digits than its factorization.

68363138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217876.

The product of its digits is 62208, while the sum is 38.

The square root of 68363138 is about 8268.2004087951. The cubic root of 68363138 is about 408.8907912782.

The spelling of 68363138 in words is "sixty-eight million, three hundred sixty-three thousand, one hundred thirty-eight".