493102591609 has 2 divisors, whose sum is σ = 493102591610. Its totient is φ = 493102591608.

The previous prime is 493102591571. The next prime is 493102591621. The reversal of 493102591609 is 906195201394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428046988009 + 65055603600 = 654253^2 + 255060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493102591609 is a prime.

It is not a weakly prime, because it can be changed into another prime (493102591699) 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, 246551295804 + 246551295805.

It is an arithmetic number, because the mean of its divisors is an integer number (246551295805).

Almost surely, 2^493102591609 is an apocalyptic number.

It is an amenable number.

493102591609 is a deficient number, since it is larger than the sum of its proper divisors (1).

493102591609 is an equidigital number, since it uses as much as digits as its factorization.

493102591609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 493102591609 in words is "four hundred ninety-three billion, one hundred two million, five hundred ninety-one thousand, six hundred nine".