68005911 has 8 divisors (see below), whose sum is σ = 92161264. Its totient is φ = 44593920.

The previous prime is 68005897. The next prime is 68005939. The reversal of 68005911 is 11950086.

It is a happy number.

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

It is not a de Polignac number, because 68005911 - 2¹⁴ = 67989527 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 (68005811) 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 7 ways as a sum of consecutive naturals, for example, 185626 + ... + 185991.

It is an arithmetic number, because the mean of its divisors is an integer number (11520158).

Almost surely, 2^68005911 is an apocalyptic number.

68005911 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

68005911 is a deficient number, since it is larger than the sum of its proper divisors (24155353).

68005911 is a wasteful number, since it uses less digits than its factorization.

68005911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371681.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 68005911 is about 8246.5696504668. The cubic root of 68005911 is about 408.1773366448.

Adding to 68005911 its reverse (11950086), we get a palindrome (79955997).

The spelling of 68005911 in words is "sixty-eight million, five thousand, nine hundred eleven".