68036811 has 4 divisors (see below), whose sum is σ = 90715752. Its totient is φ = 45357872.

The previous prime is 68036807. The next prime is 68036833. The reversal of 68036811 is 11863086.

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 68036811 - 2² = 68036807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68036011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11339466 + ... + 11339471.

It is an arithmetic number, because the mean of its divisors is an integer number (22678938).

Almost surely, 2^68036811 is an apocalyptic number.

68036811 is a deficient number, since it is larger than the sum of its proper divisors (22678941).

68036811 is a wasteful number, since it uses less digits than its factorization.

68036811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22678940.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 68036811 is about 8248.4429439743. The cubic root of 68036811 is about 408.2391487712.

Adding to 68036811 its reverse (11863086), we get a palindrome (79899897).

The spelling of 68036811 in words is "sixty-eight million, thirty-six thousand, eight hundred eleven".