1708640575493 has 2 divisors, whose sum is σ = 1708640575494. Its totient is φ = 1708640575492.

The previous prime is 1708640575391. The next prime is 1708640575507. The reversal of 1708640575493 is 3945750468071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439152924609 + 269487650884 = 1199647^2 + 519122^2 .

It is a cyclic number.

It is not a de Polignac number, because 1708640575493 - 2¹⁰ = 1708640574469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1708640775493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854320287746 + 854320287747.

It is an arithmetic number, because the mean of its divisors is an integer number (854320287747).

Almost surely, 2^{1708640575493} is an apocalyptic number.

It is an amenable number.

1708640575493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1708640575493 is an equidigital number, since it uses as much as digits as its factorization.

1708640575493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 1708640575493 in words is "one trillion, seven hundred eight billion, six hundred forty million, five hundred seventy-five thousand, four hundred ninety-three".