503420330042489 has 2 divisors, whose sum is σ = 503420330042490. Its totient is φ = 503420330042488.

The previous prime is 503420330042473. The next prime is 503420330042501. The reversal of 503420330042489 is 984240033024305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497918701784464 + 5501628258025 = 22314092^2 + 2345555^2 .

It is a cyclic number.

It is not a de Polignac number, because 503420330042489 - 2⁴ = 503420330042473 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 (503420330042419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251710165021244 + 251710165021245.

It is an arithmetic number, because the mean of its divisors is an integer number (251710165021245).

Almost surely, 2^{503420330042489} is an apocalyptic number.

It is an amenable number.

503420330042489 is a deficient number, since it is larger than the sum of its proper divisors (1).

503420330042489 is an equidigital number, since it uses as much as digits as its factorization.

503420330042489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 503420330042489 in words is "five hundred three trillion, four hundred twenty billion, three hundred thirty million, forty-two thousand, four hundred eighty-nine".