1703680743409 has 2 divisors, whose sum is σ = 1703680743410. Its totient is φ = 1703680743408.

The previous prime is 1703680743403. The next prime is 1703680743439. The reversal of 1703680743409 is 9043470863071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1522521549025 + 181159194384 = 1233905^2 + 425628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1703680743409 - 2³¹ = 1701533259761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1703680743403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851840371704 + 851840371705.

It is an arithmetic number, because the mean of its divisors is an integer number (851840371705).

Almost surely, 2^{1703680743409} is an apocalyptic number.

It is an amenable number.

1703680743409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1703680743409 is an equidigital number, since it uses as much as digits as its factorization.

1703680743409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 1703680743409 in words is "one trillion, seven hundred three billion, six hundred eighty million, seven hundred forty-three thousand, four hundred nine".