519801379 has 2 divisors, whose sum is σ = 519801380. Its totient is φ = 519801378.

The previous prime is 519801377. The next prime is 519801421. The reversal of 519801379 is 973108915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 519801379 - 2¹ = 519801377 is a prime.

It is a super-2 number, since 2×519801379² = 540386947220603282, which contains 22 as substring.

Together with 519801377, it forms a pair of twin primes.

It is equal to p_27342799 and since 519801379 and 27342799 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (519801377) 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, 259900689 + 259900690.

It is an arithmetic number, because the mean of its divisors is an integer number (259900690).

Almost surely, 2^519801379 is an apocalyptic number.

519801379 is a deficient number, since it is larger than the sum of its proper divisors (1).

519801379 is an equidigital number, since it uses as much as digits as its factorization.

519801379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 519801379 is about 22799.1530325142. The cubic root of 519801379 is about 804.0427539907.

The spelling of 519801379 in words is "five hundred nineteen million, eight hundred one thousand, three hundred seventy-nine".