68009759 has 8 divisors (see below), whose sum is σ = 72941040. Its totient is φ = 63213696.

The previous prime is 68009749. The next prime is 68009779. The reversal of 68009759 is 95790086.

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 68009759 - 2⁴ = 68009743 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 (68009729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32762 + ... + 34775.

It is an arithmetic number, because the mean of its divisors is an integer number (9117630).

Almost surely, 2^68009759 is an apocalyptic number.

68009759 is a deficient number, since it is larger than the sum of its proper divisors (4931281).

68009759 is a wasteful number, since it uses less digits than its factorization.

68009759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67609.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 68009759 is about 8246.8029562977. The cubic root of 68009759 is about 408.1850351754.

The spelling of 68009759 in words is "sixty-eight million, nine thousand, seven hundred fifty-nine".