4251123010609 has 2 divisors, whose sum is σ = 4251123010610. Its totient is φ = 4251123010608.

The previous prime is 4251123010529. The next prime is 4251123010613. The reversal of 4251123010609 is 9060103211524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3491310935025 + 759812075584 = 1868505^2 + 871672^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251123010609 - 2²⁷ = 4250988792881 is a prime.

It is not a weakly prime, because it can be changed into another prime (4251123010679) 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, 2125561505304 + 2125561505305.

It is an arithmetic number, because the mean of its divisors is an integer number (2125561505305).

Almost surely, 2^{4251123010609} is an apocalyptic number.

It is an amenable number.

4251123010609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251123010609 is an equidigital number, since it uses as much as digits as its factorization.

4251123010609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 4251123010609 in words is "four trillion, two hundred fifty-one billion, one hundred twenty-three million, ten thousand, six hundred nine".