7647198397133 has 2 divisors, whose sum is σ = 7647198397134. Its totient is φ = 7647198397132.

The previous prime is 7647198397117. The next prime is 7647198397141. The reversal of 7647198397133 is 3317938917467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7576217715049 + 70980682084 = 2752493^2 + 266422^2 .

It is an emirp because it is prime and its reverse (3317938917467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7647198397133 - 2⁴ = 7647198397117 is a prime.

It is a super-2 number, since 2×7647198397133² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7647198390133) 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, 3823599198566 + 3823599198567.

It is an arithmetic number, because the mean of its divisors is an integer number (3823599198567).

Almost surely, 2^{7647198397133} is an apocalyptic number.

It is an amenable number.

7647198397133 is a deficient number, since it is larger than the sum of its proper divisors (1).

7647198397133 is an equidigital number, since it uses as much as digits as its factorization.

7647198397133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144027072, while the sum is 68.

The spelling of 7647198397133 in words is "seven trillion, six hundred forty-seven billion, one hundred ninety-eight million, three hundred ninety-seven thousand, one hundred thirty-three".