5120648609 has 2 divisors, whose sum is σ = 5120648610. Its totient is φ = 5120648608.

The previous prime is 5120648551. The next prime is 5120648627. The reversal of 5120648609 is 9068460215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4289595025 + 831053584 = 65495^2 + 28828^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120648609 - 2¹² = 5120644513 is a prime.

It is not a weakly prime, because it can be changed into another prime (5120648009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560324304 + 2560324305.

It is an arithmetic number, because the mean of its divisors is an integer number (2560324305).

Almost surely, 2^5120648609 is an apocalyptic number.

It is an amenable number.

5120648609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120648609 is an equidigital number, since it uses as much as digits as its factorization.

5120648609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 5120648609 is about 71558.7074296343. The cubic root of 5120648609 is about 1723.6205294592.

The spelling of 5120648609 in words is "five billion, one hundred twenty million, six hundred forty-eight thousand, six hundred nine".