2878273728 has 168 divisors, whose sum is σ = 9391838976. Its totient is φ = 834240000.

The previous prime is 2878273687. The next prime is 2878273733. The reversal of 2878273728 is 8273728782.

2878273728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135853 + ... + 155603.

Almost surely, 2^2878273728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878273728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4695919488).

2878273728 is an abundant number, since it is smaller than the sum of its proper divisors (6513565248).

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

2878273728 is a wasteful number, since it uses less digits than its factorization.

2878273728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19803 (or 19790 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 54.

The square root of 2878273728 is about 53649.5454593979. The cubic root of 2878273728 is about 1422.4729980677.

The spelling of 2878273728 in words is "two billion, eight hundred seventy-eight million, two hundred seventy-three thousand, seven hundred twenty-eight".