6768609739 has 4 divisors (see below), whose sum is σ = 6814036800. Its totient is φ = 6723182680.

The previous prime is 6768609697. The next prime is 6768609751. The reversal of 6768609739 is 9379068676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6768609739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6768609769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22713307 + ... + 22713604.

It is an arithmetic number, because the mean of its divisors is an integer number (1703509200).

Almost surely, 2^6768609739 is an apocalyptic number.

6768609739 is a deficient number, since it is larger than the sum of its proper divisors (45427061).

6768609739 is a wasteful number, since it uses less digits than its factorization.

6768609739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45427060.

The product of its (nonzero) digits is 20575296, while the sum is 61.

The square root of 6768609739 is about 82271.5609369362. The cubic root of 6768609739 is about 1891.6167813048.

The spelling of 6768609739 in words is "six billion, seven hundred sixty-eight million, six hundred nine thousand, seven hundred thirty-nine".