500420125789 has 2 divisors, whose sum is σ = 500420125790. Its totient is φ = 500420125788.

The previous prime is 500420125771. The next prime is 500420125831. The reversal of 500420125789 is 987521024005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363180996025 + 137239129764 = 602645^2 + 370458^2 .

It is a cyclic number.

It is not a de Polignac number, because 500420125789 - 2⁵ = 500420125757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500420125729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250210062894 + 250210062895.

It is an arithmetic number, because the mean of its divisors is an integer number (250210062895).

Almost surely, 2^500420125789 is an apocalyptic number.

It is an amenable number.

500420125789 is a deficient number, since it is larger than the sum of its proper divisors (1).

500420125789 is an equidigital number, since it uses as much as digits as its factorization.

500420125789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 500420125789 in words is "five hundred billion, four hundred twenty million, one hundred twenty-five thousand, seven hundred eighty-nine".