2783278880 has 48 divisors (see below), whose sum is σ = 6578760384. Its totient is φ = 1112759040.

The previous prime is 2783278819. The next prime is 2783278889. The reversal of 2783278880 is 888723872.

2783278880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2783278889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509765 + ... + 515195.

It is an arithmetic number, because the mean of its divisors is an integer number (137057508).

Almost surely, 2^2783278880 is an apocalyptic number.

2783278880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2783278880 is an abundant number, since it is smaller than the sum of its proper divisors (3795481504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2783278880 is a wasteful number, since it uses less digits than its factorization.

2783278880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8649 (or 8641 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The square root of 2783278880 is about 52756.7898947614. The cubic root of 2783278880 is about 1406.6484587936.

The spelling of 2783278880 in words is "two billion, seven hundred eighty-three million, two hundred seventy-eight thousand, eight hundred eighty".