6638075113 has 2 divisors, whose sum is σ = 6638075114. Its totient is φ = 6638075112.

The previous prime is 6638075107. The next prime is 6638075173. The reversal of 6638075113 is 3115708366.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6489430249 + 148644864 = 80557^2 + 12192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6638075113 is a prime.

It is not a weakly prime, because it can be changed into another prime (6638075173) 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 as a sum of consecutive naturals, namely, 3319037556 + 3319037557.

It is an arithmetic number, because the mean of its divisors is an integer number (3319037557).

Almost surely, 2^6638075113 is an apocalyptic number.

It is an amenable number.

6638075113 is a deficient number, since it is larger than the sum of its proper divisors (1).

6638075113 is an equidigital number, since it uses as much as digits as its factorization.

6638075113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 6638075113 is about 81474.3831704174. The cubic root of 6638075113 is about 1879.3776339828.

The spelling of 6638075113 in words is "six billion, six hundred thirty-eight million, seventy-five thousand, one hundred thirteen".