8278045819 has 4 divisors (see below), whose sum is σ = 8280478944. Its totient is φ = 8275612696.

The previous prime is 8278045793. The next prime is 8278045823. The reversal of 8278045819 is 9185408728.

It is a happy number.

8278045819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8278045819 - 2¹⁷ = 8277914747 is a prime.

It is a super-2 number, since 2×8278045819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8278045829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211452 + ... + 1218265.

It is an arithmetic number, because the mean of its divisors is an integer number (2070119736).

Almost surely, 2^8278045819 is an apocalyptic number.

8278045819 is a deficient number, since it is larger than the sum of its proper divisors (2433125).

8278045819 is a wasteful number, since it uses less digits than its factorization.

8278045819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433124.

The product of its (nonzero) digits is 1290240, while the sum is 52.

The square root of 8278045819 is about 90983.7667883673. The cubic root of 8278045819 is about 2022.9071152695.

The spelling of 8278045819 in words is "eight billion, two hundred seventy-eight million, forty-five thousand, eight hundred nineteen".