609525509819 has 2 divisors, whose sum is σ = 609525509820. Its totient is φ = 609525509818.

The previous prime is 609525509743. The next prime is 609525509861. The reversal of 609525509819 is 918905525906.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609525509819 is a prime.

It is a super-2 number, since 2×609525509819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609525509519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304762754909 + 304762754910.

It is an arithmetic number, because the mean of its divisors is an integer number (304762754910).

Almost surely, 2^609525509819 is an apocalyptic number.

609525509819 is a deficient number, since it is larger than the sum of its proper divisors (1).

609525509819 is an equidigital number, since it uses as much as digits as its factorization.

609525509819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748000, while the sum is 59.

The spelling of 609525509819 in words is "six hundred nine billion, five hundred twenty-five million, five hundred nine thousand, eight hundred nineteen".