5648668513 has 2 divisors, whose sum is σ = 5648668514. Its totient is φ = 5648668512.

The previous prime is 5648668483. The next prime is 5648668537. The reversal of 5648668513 is 3158668465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5283399969 + 365268544 = 72687^2 + 19112^2 .

It is a cyclic number.

It is not a de Polignac number, because 5648668513 - 2⁹ = 5648668001 is a prime.

It is not a weakly prime, because it can be changed into another prime (5648668573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824334256 + 2824334257.

It is an arithmetic number, because the mean of its divisors is an integer number (2824334257).

Almost surely, 2^5648668513 is an apocalyptic number.

It is an amenable number.

5648668513 is a deficient number, since it is larger than the sum of its proper divisors (1).

5648668513 is an equidigital number, since it uses as much as digits as its factorization.

5648668513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 52.

The square root of 5648668513 is about 75157.6244502180. The cubic root of 5648668513 is about 1780.9375729165.

The spelling of 5648668513 in words is "five billion, six hundred forty-eight million, six hundred sixty-eight thousand, five hundred thirteen".