609653329991 has 2 divisors, whose sum is σ = 609653329992. Its totient is φ = 609653329990.

The previous prime is 609653329907. The next prime is 609653329997. The reversal of 609653329991 is 199923356906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609653329991 - 2¹⁰ = 609653328967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609653329997) 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, 304826664995 + 304826664996.

It is an arithmetic number, because the mean of its divisors is an integer number (304826664996).

Almost surely, 2^609653329991 is an apocalyptic number.

609653329991 is a deficient number, since it is larger than the sum of its proper divisors (1).

609653329991 is an equidigital number, since it uses as much as digits as its factorization.

609653329991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21257640, while the sum is 62.

The spelling of 609653329991 in words is "six hundred nine billion, six hundred fifty-three million, three hundred twenty-nine thousand, nine hundred ninety-one".