6787804129 has 2 divisors, whose sum is σ = 6787804130. Its totient is φ = 6787804128.

The previous prime is 6787804123. The next prime is 6787804141. The reversal of 6787804129 is 9214087876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6320250000 + 467554129 = 79500^2 + 21623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6787804129 is a prime.

It is not a weakly prime, because it can be changed into another prime (6787804123) 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 as a sum of consecutive naturals, namely, 3393902064 + 3393902065.

It is an arithmetic number, because the mean of its divisors is an integer number (3393902065).

Almost surely, 2^6787804129 is an apocalyptic number.

It is an amenable number.

6787804129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787804129 is an equidigital number, since it uses as much as digits as its factorization.

6787804129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 6787804129 is about 82388.1309959147. The cubic root of 6787804129 is about 1893.4031729229.

The spelling of 6787804129 in words is "six billion, seven hundred eighty-seven million, eight hundred four thousand, one hundred twenty-nine".