8519399039 has 2 divisors, whose sum is σ = 8519399040. Its totient is φ = 8519399038.

The previous prime is 8519399033. The next prime is 8519399041. The reversal of 8519399039 is 9309939158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8519399039 is a prime.

Together with 8519399041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8519399033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259699519 + 4259699520.

It is an arithmetic number, because the mean of its divisors is an integer number (4259699520).

Almost surely, 2^8519399039 is an apocalyptic number.

8519399039 is a deficient number, since it is larger than the sum of its proper divisors (1).

8519399039 is an equidigital number, since it uses as much as digits as its factorization.

8519399039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The square root of 8519399039 is about 92300.5906752497. The cubic root of 8519399039 is about 2042.3789240313.

The spelling of 8519399039 in words is "eight billion, five hundred nineteen million, three hundred ninety-nine thousand, thirty-nine".