2878537728 has 170 divisors, whose sum is σ = 8443593820. Its totient is φ = 872284160.

The previous prime is 2878537721. The next prime is 2878537747. The reversal of 2878537728 is 8277358782.

Its product of digits (10536960) is a multiple of the sum of its prime divisors (16).

It is not an unprimeable number, because it can be changed into a prime (2878537721) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 261685243 + ... + 261685253.

Almost surely, 2^2878537728 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 2878537728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4221796910).

2878537728 is an abundant number, since it is smaller than the sum of its proper divisors (5565056092).

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

2878537728 is an frugal number, since it uses more digits than its factorization.

2878537728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 16 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 57.

The square root of 2878537728 is about 53652.0058152535. The cubic root of 2878537728 is about 1422.5164872590.

The spelling of 2878537728 in words is "two billion, eight hundred seventy-eight million, five hundred thirty-seven thousand, seven hundred twenty-eight".