8020805519 has 2 divisors, whose sum is σ = 8020805520. Its totient is φ = 8020805518.

The previous prime is 8020805497. The next prime is 8020805531. The reversal of 8020805519 is 9155080208.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8020805519 is a prime.

It is a super-2 number, since 2×8020805519² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8020808519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4010402759 + 4010402760.

It is an arithmetic number, because the mean of its divisors is an integer number (4010402760).

Almost surely, 2^8020805519 is an apocalyptic number.

8020805519 is a deficient number, since it is larger than the sum of its proper divisors (1).

8020805519 is an equidigital number, since it uses as much as digits as its factorization.

8020805519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 8020805519 is about 89558.9499659303. The cubic root of 8020805519 is about 2001.7322923983.

The spelling of 8020805519 in words is "eight billion, twenty million, eight hundred five thousand, five hundred nineteen".