68985611 has 4 divisors (see below), whose sum is σ = 69135072. Its totient is φ = 68836152.

The previous prime is 68985607. The next prime is 68985619. The reversal of 68985611 is 11658986.

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 68985611 - 2² = 68985607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68985619) 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, 74036 + ... + 74961.

It is an arithmetic number, because the mean of its divisors is an integer number (17283768).

Almost surely, 2^68985611 is an apocalyptic number.

68985611 is a deficient number, since it is larger than the sum of its proper divisors (149461).

68985611 is a wasteful number, since it uses less digits than its factorization.

68985611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149460.

The product of its digits is 103680, while the sum is 44.

The square root of 68985611 is about 8305.7577017392. The cubic root of 68985611 is about 410.1280801514.

It can be divided in two parts, 68985 and 611, that added together give a palindrome (69596).

The spelling of 68985611 in words is "sixty-eight million, nine hundred eighty-five thousand, six hundred eleven".