68831611 has 4 divisors (see below), whose sum is σ = 69011712. Its totient is φ = 68651512.

The previous prime is 68831591. The next prime is 68831629. The reversal of 68831611 is 11613886.

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 68831611 - 2⁹ = 68831099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68831671) 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 3 ways as a sum of consecutive naturals, for example, 89476 + ... + 90241.

It is an arithmetic number, because the mean of its divisors is an integer number (17252928).

Almost surely, 2^68831611 is an apocalyptic number.

68831611 is a deficient number, since it is larger than the sum of its proper divisors (180101).

68831611 is a wasteful number, since it uses less digits than its factorization.

68831611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180100.

The product of its digits is 6912, while the sum is 34.

The square root of 68831611 is about 8296.4818447339. The cubic root of 68831611 is about 409.8226696945.

The spelling of 68831611 in words is "sixty-eight million, eight hundred thirty-one thousand, six hundred eleven".