6739642305 has 24 divisors (see below), whose sum is σ = 12744051840. Its totient is φ = 3267705120.

The previous prime is 6739642303. The next prime is 6739642309. The reversal of 6739642305 is 5032469376.

6739642305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6739642305 - 2¹ = 6739642303 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6739642303) 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 23 ways as a sum of consecutive naturals, for example, 6807225 + ... + 6808214.

It is an arithmetic number, because the mean of its divisors is an integer number (531002160).

Almost surely, 2^6739642305 is an apocalyptic number.

It is an amenable number.

6739642305 is a deficient number, since it is larger than the sum of its proper divisors (6004409535).

6739642305 is a wasteful number, since it uses less digits than its factorization.

6739642305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615461 (or 13615458 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The square root of 6739642305 is about 82095.3245014599. The cubic root of 6739642305 is about 1888.9144223570.

The spelling of 6739642305 in words is "six billion, seven hundred thirty-nine million, six hundred forty-two thousand, three hundred five".