519392740369 has 2 divisors, whose sum is σ = 519392740370. Its totient is φ = 519392740368.

The previous prime is 519392740327. The next prime is 519392740439. The reversal of 519392740369 is 963047293915.

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., 501150726400 + 18242013969 = 707920^2 + 135063^2 .

It is a cyclic number.

It is not a de Polignac number, because 519392740369 - 2¹¹ = 519392738321 is a prime.

It is a super-2 number, since 2×519392740369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (519392740309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259696370184 + 259696370185.

It is an arithmetic number, because the mean of its divisors is an integer number (259696370185).

Almost surely, 2^519392740369 is an apocalyptic number.

It is an amenable number.

519392740369 is a deficient number, since it is larger than the sum of its proper divisors (1).

519392740369 is an equidigital number, since it uses as much as digits as its factorization.

519392740369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The spelling of 519392740369 in words is "five hundred nineteen billion, three hundred ninety-two million, seven hundred forty thousand, three hundred sixty-nine".