6768161139 has 16 divisors (see below), whose sum is σ = 9073861632. Its totient is φ = 4487343168.

The previous prime is 6768161131. The next prime is 6768161161. The reversal of 6768161139 is 9311618676.

It is not a de Polignac number, because 6768161139 - 2³ = 6768161131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6768161131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479862 + ... + 493764.

It is an arithmetic number, because the mean of its divisors is an integer number (567116352).

Almost surely, 2^6768161139 is an apocalyptic number.

6768161139 is a deficient number, since it is larger than the sum of its proper divisors (2305700493).

6768161139 is a wasteful number, since it uses less digits than its factorization.

6768161139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14786.

The product of its digits is 326592, while the sum is 48.

The square root of 6768161139 is about 82268.8345547693. The cubic root of 6768161139 is about 1891.5749904463.

The spelling of 6768161139 in words is "six billion, seven hundred sixty-eight million, one hundred sixty-one thousand, one hundred thirty-nine".