68748711 has 4 divisors (see below), whose sum is σ = 91664952. Its totient is φ = 45832472.

The previous prime is 68748703. The next prime is 68748737. The reversal of 68748711 is 11784786.

It is a happy number.

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 68748711 - 2³ = 68748703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68748761) 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, 11458116 + ... + 11458121.

It is an arithmetic number, because the mean of its divisors is an integer number (22916238).

Almost surely, 2^68748711 is an apocalyptic number.

68748711 is a deficient number, since it is larger than the sum of its proper divisors (22916241).

68748711 is a wasteful number, since it uses less digits than its factorization.

68748711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22916240.

The product of its digits is 75264, while the sum is 42.

The square root of 68748711 is about 8291.4842458995. The cubic root of 68748711 is about 409.6580750295.

The spelling of 68748711 in words is "sixty-eight million, seven hundred forty-eight thousand, seven hundred eleven".