2808578979 has 12 divisors (see below), whose sum is σ = 4196727600. Its totient is φ = 1807820784.

The previous prime is 2808578977. The next prime is 2808579001. The reversal of 2808578979 is 9798758082.

It is not a de Polignac number, because 2808578979 - 2¹ = 2808578977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2808578977) 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 in 11 ways as a sum of consecutive naturals, for example, 5380159 + ... + 5380680.

It is an arithmetic number, because the mean of its divisors is an integer number (349727300).

Almost surely, 2^2808578979 is an apocalyptic number.

2808578979 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2808578979 is a deficient number, since it is larger than the sum of its proper divisors (1388148621).

2808578979 is a wasteful number, since it uses less digits than its factorization.

2808578979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760874 (or 10760871 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The square root of 2808578979 is about 52996.0279549326. The cubic root of 2808578979 is about 1410.8977698867.

The spelling of 2808578979 in words is "two billion, eight hundred eight million, five hundred seventy-eight thousand, nine hundred seventy-nine".