1759665116449 has 2 divisors, whose sum is σ = 1759665116450. Its totient is φ = 1759665116448.

The previous prime is 1759665116423. The next prime is 1759665116453. The reversal of 1759665116449 is 9446115669571.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111615966224 + 648049150225 = 1054332^2 + 805015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1759665116449 - 2²³ = 1759656727841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1759665116249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 879832558224 + 879832558225.

It is an arithmetic number, because the mean of its divisors is an integer number (879832558225).

Almost surely, 2^{1759665116449} is an apocalyptic number.

It is an amenable number.

1759665116449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1759665116449 is an equidigital number, since it uses as much as digits as its factorization.

1759665116449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 64.

The spelling of 1759665116449 in words is "one trillion, seven hundred fifty-nine billion, six hundred sixty-five million, one hundred sixteen thousand, four hundred forty-nine".