68588109 has 12 divisors (see below), whose sum is σ = 99178300. Its totient is φ = 45676224.

The previous prime is 68588083. The next prime is 68588153. The reversal of 68588109 is 90188586.

68588109 is a `hidden beast` number, since 68 + 588 + 1 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37785609 + 30802500 = 6147^2 + 5550^2 .

It is not a de Polignac number, because 68588109 - 2¹² = 68584013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68588189) 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 11 ways as a sum of consecutive naturals, for example, 6057 + ... + 13185.

Almost surely, 2^68588109 is an apocalyptic number.

It is an amenable number.

68588109 is a deficient number, since it is larger than the sum of its proper divisors (30590191).

68588109 is a wasteful number, since it uses less digits than its factorization.

68588109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204 (or 8201 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 68588109 is about 8281.7938274265. The cubic root of 68588109 is about 409.3388292654.

The spelling of 68588109 in words is "sixty-eight million, five hundred eighty-eight thousand, one hundred nine".