4350783878489 has 2 divisors, whose sum is σ = 4350783878490. Its totient is φ = 4350783878488.

The previous prime is 4350783878423. The next prime is 4350783878521. The reversal of 4350783878489 is 9848783870534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2818654843225 + 1532129035264 = 1678885^2 + 1237792^2 .

It is a cyclic number.

It is not a de Polignac number, because 4350783878489 - 2²⁴ = 4350767101273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4350783878689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175391939244 + 2175391939245.

It is an arithmetic number, because the mean of its divisors is an integer number (2175391939245).

Almost surely, 2^{4350783878489} is an apocalyptic number.

It is an amenable number.

4350783878489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4350783878489 is an equidigital number, since it uses as much as digits as its factorization.

4350783878489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1300561920, while the sum is 74.

The spelling of 4350783878489 in words is "four trillion, three hundred fifty billion, seven hundred eighty-three million, eight hundred seventy-eight thousand, four hundred eighty-nine".