68205711 has 16 divisors (see below), whose sum is σ = 105696000. Its totient is φ = 38313408.

The previous prime is 68205707. The next prime is 68205713. The reversal of 68205711 is 11750286.

It is not a de Polignac number, because 68205711 - 2² = 68205707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68205713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26286 + ... + 28763.

It is an arithmetic number, because the mean of its divisors is an integer number (6606000).

Almost surely, 2^68205711 is an apocalyptic number.

68205711 is a deficient number, since it is larger than the sum of its proper divisors (37490289).

68205711 is a wasteful number, since it uses less digits than its factorization.

68205711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55118.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 68205711 is about 8258.6748937102. The cubic root of 68205711 is about 408.5766847452.

Adding to 68205711 its reverse (11750286), we get a palindrome (79955997).

The spelling of 68205711 in words is "sixty-eight million, two hundred five thousand, seven hundred eleven".