7128235663 has 2 divisors, whose sum is σ = 7128235664. Its totient is φ = 7128235662.

The previous prime is 7128235637. The next prime is 7128235729. The reversal of 7128235663 is 3665328217.

It is a weak prime.

It is an emirp because it is prime and its reverse (3665328217) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7128235663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7128235633) 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, 3564117831 + 3564117832.

It is an arithmetic number, because the mean of its divisors is an integer number (3564117832).

Almost surely, 2^7128235663 is an apocalyptic number.

7128235663 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128235663 is an equidigital number, since it uses as much as digits as its factorization.

7128235663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 7128235663 is about 84428.8793186313. The cubic root of 7128235663 is about 1924.5418069995.

The spelling of 7128235663 in words is "seven billion, one hundred twenty-eight million, two hundred thirty-five thousand, six hundred sixty-three".