2783278080 has 792 divisors, whose sum is σ = 11764190880. Its totient is φ = 601620480.

The previous prime is 2783278079. The next prime is 2783278111. The reversal of 2783278080 is 808723872.

It is a tau number, because it is divible by the number of its divisors (792).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 146488311 + ... + 146488329.

Almost surely, 2^2783278080 is an apocalyptic number.

2783278080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2783278080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5882095440).

2783278080 is an abundant number, since it is smaller than the sum of its proper divisors (8980912800).

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

2783278080 is a wasteful number, since it uses less digits than its factorization.

2783278080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2783278080 is about 52756.7823127984. The cubic root of 2783278080 is about 1406.6483240223.

The spelling of 2783278080 in words is "two billion, seven hundred eighty-three million, two hundred seventy-eight thousand, eighty".