1718480761253 has 2 divisors, whose sum is σ = 1718480761254. Its totient is φ = 1718480761252.

The previous prime is 1718480761229. The next prime is 1718480761289. The reversal of 1718480761253 is 3521670848171.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400241489124 + 318239272129 = 1183318^2 + 564127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1718480761253 - 2²⁴ = 1718463984037 is a prime.

It is a super-2 number, since 2×1718480761253² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1718480761195 and 1718480761204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1718480761213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 859240380626 + 859240380627.

It is an arithmetic number, because the mean of its divisors is an integer number (859240380627).

Almost surely, 2^{1718480761253} is an apocalyptic number.

It is an amenable number.

1718480761253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1718480761253 is an equidigital number, since it uses as much as digits as its factorization.

1718480761253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 1718480761253 in words is "one trillion, seven hundred eighteen billion, four hundred eighty million, seven hundred sixty-one thousand, two hundred fifty-three".