68641127 has 4 divisors (see below), whose sum is σ = 69095856. Its totient is φ = 68186400.

The previous prime is 68641123. The next prime is 68641141. The reversal of 68641127 is 72114686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68641127 - 2² = 68641123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68641123) 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 3 ways as a sum of consecutive naturals, for example, 227138 + ... + 227439.

It is an arithmetic number, because the mean of its divisors is an integer number (17273964).

Almost surely, 2^68641127 is an apocalyptic number.

68641127 is a deficient number, since it is larger than the sum of its proper divisors (454729).

68641127 is a wasteful number, since it uses less digits than its factorization.

68641127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454728.

The product of its digits is 16128, while the sum is 35.

The square root of 68641127 is about 8284.9940856949. The cubic root of 68641127 is about 409.4442738624. Note that the first 3 decimals are identical.

The spelling of 68641127 in words is "sixty-eight million, six hundred forty-one thousand, one hundred twenty-seven".