1493209502809 has 2 divisors, whose sum is σ = 1493209502810. Its totient is φ = 1493209502808.

The previous prime is 1493209502783. The next prime is 1493209502833. The reversal of 1493209502809 is 9082059023941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1483243873225 + 9965629584 = 1217885^2 + 99828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493209502809 - 2⁵ = 1493209502777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1493209502839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746604751404 + 746604751405.

It is an arithmetic number, because the mean of its divisors is an integer number (746604751405).

Almost surely, 2^{1493209502809} is an apocalyptic number.

It is an amenable number.

1493209502809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493209502809 is an equidigital number, since it uses as much as digits as its factorization.

1493209502809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 1493209502809 in words is "one trillion, four hundred ninety-three billion, two hundred nine million, five hundred two thousand, eight hundred nine".