8578340819 has 2 divisors, whose sum is σ = 8578340820. Its totient is φ = 8578340818.

The previous prime is 8578340807. The next prime is 8578340839. The reversal of 8578340819 is 9180438758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8578340819 - 2¹⁶ = 8578275283 is a prime.

It is a super-2 number, since 2×8578340819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8578340839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4289170409 + 4289170410.

It is an arithmetic number, because the mean of its divisors is an integer number (4289170410).

Almost surely, 2^8578340819 is an apocalyptic number.

8578340819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8578340819 is an equidigital number, since it uses as much as digits as its factorization.

8578340819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 8578340819 is about 92619.3328576707. The cubic root of 8578340819 is about 2047.0781948626.

The spelling of 8578340819 in words is "eight billion, five hundred seventy-eight million, three hundred forty thousand, eight hundred nineteen".