68713811 has 8 divisors (see below), whose sum is σ = 73055520. Its totient is φ = 64484992.

The previous prime is 68713807. The next prime is 68713817. The reversal of 68713811 is 11831786.

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

It is a cyclic number.

It is not a de Polignac number, because 68713811 - 2² = 68713807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68713817) 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 7 ways as a sum of consecutive naturals, for example, 26966 + ... + 29403.

It is an arithmetic number, because the mean of its divisors is an integer number (9131940).

Almost surely, 2^68713811 is an apocalyptic number.

68713811 is a deficient number, since it is larger than the sum of its proper divisors (4341709).

68713811 is a wasteful number, since it uses less digits than its factorization.

68713811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56445.

The product of its digits is 8064, while the sum is 35.

The square root of 68713811 is about 8289.3794098232. The cubic root of 68713811 is about 409.5887428846.

The spelling of 68713811 in words is "sixty-eight million, seven hundred thirteen thousand, eight hundred eleven".