5642519609 has 2 divisors, whose sum is σ = 5642519610. Its totient is φ = 5642519608.

The previous prime is 5642519593. The next prime is 5642519611. The reversal of 5642519609 is 9069152465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4176778384 + 1465741225 = 64628^2 + 38285^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642519609 - 2⁴ = 5642519593 is a prime.

Together with 5642519611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5642519209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821259804 + 2821259805.

It is an arithmetic number, because the mean of its divisors is an integer number (2821259805).

Almost surely, 2^5642519609 is an apocalyptic number.

It is an amenable number.

5642519609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642519609 is an equidigital number, since it uses as much as digits as its factorization.

5642519609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 5642519609 is about 75116.7065904783. The cubic root of 5642519609 is about 1780.2911202715.

The spelling of 5642519609 in words is "five billion, six hundred forty-two million, five hundred nineteen thousand, six hundred nine".