6691768075 has 24 divisors (see below), whose sum is σ = 8561505600. Its totient is φ = 5185839360.

The previous prime is 6691768073. The next prime is 6691768079. The reversal of 6691768075 is 5708671966.

It is not a de Polignac number, because 6691768075 - 2¹ = 6691768073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6691768073) 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, 72711 + ... + 136639.

It is an arithmetic number, because the mean of its divisors is an integer number (356729400).

Almost surely, 2^6691768075 is an apocalyptic number.

6691768075 is a deficient number, since it is larger than the sum of its proper divisors (1869737525).

6691768075 is a wasteful number, since it uses less digits than its factorization.

6691768075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64071 (or 64066 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 6691768075 is about 81803.2277786152. The cubic root of 6691768075 is about 1884.4312322665.

The spelling of 6691768075 in words is "six billion, six hundred ninety-one million, seven hundred sixty-eight thousand, seventy-five".