500444784397 has 2 divisors, whose sum is σ = 500444784398. Its totient is φ = 500444784396.

The previous prime is 500444784379. The next prime is 500444784403. The reversal of 500444784397 is 793487444005.

Together with previous prime (500444784379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493570882116 + 6873902281 = 702546^2 + 82909^2 .

It is a cyclic number.

It is not a de Polignac number, because 500444784397 - 2¹⁵ = 500444751629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500444784997) 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, 250222392198 + 250222392199.

It is an arithmetic number, because the mean of its divisors is an integer number (250222392199).

Almost surely, 2^500444784397 is an apocalyptic number.

It is an amenable number.

500444784397 is a deficient number, since it is larger than the sum of its proper divisors (1).

500444784397 is an equidigital number, since it uses as much as digits as its factorization.

500444784397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 500444784397 in words is "five hundred billion, four hundred forty-four million, seven hundred eighty-four thousand, three hundred ninety-seven".