68041309 has 8 divisors (see below), whose sum is σ = 77811968. Its totient is φ = 58283280.

The previous prime is 68041283. The next prime is 68041319. The reversal of 68041309 is 90314086.

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 68041309 - 2⁵ = 68041277 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 (68041319) 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, 16924 + ... + 20554.

It is an arithmetic number, because the mean of its divisors is an integer number (9726496).

Almost surely, 2^68041309 is an apocalyptic number.

It is an amenable number.

68041309 is a deficient number, since it is larger than the sum of its proper divisors (9770659).

68041309 is a wasteful number, since it uses less digits than its factorization.

68041309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68041309 is about 8248.7155969884. The cubic root of 68041309 is about 408.2481449759.

The spelling of 68041309 in words is "sixty-eight million, forty-one thousand, three hundred nine".