1817782934753 has 2 divisors, whose sum is σ = 1817782934754. Its totient is φ = 1817782934752.

The previous prime is 1817782934749. The next prime is 1817782934857. The reversal of 1817782934753 is 3574392877181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1319300337664 + 498482597089 = 1148608^2 + 706033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1817782934753 - 2² = 1817782934749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1817782934753.

It is not a weakly prime, because it can be changed into another prime (1817782934353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908891467376 + 908891467377.

It is an arithmetic number, because the mean of its divisors is an integer number (908891467377).

Almost surely, 2^{1817782934753} is an apocalyptic number.

It is an amenable number.

1817782934753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1817782934753 is an equidigital number, since it uses as much as digits as its factorization.

1817782934753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 65.

The spelling of 1817782934753 in words is "one trillion, eight hundred seventeen billion, seven hundred eighty-two million, nine hundred thirty-four thousand, seven hundred fifty-three".