2878558782 has 96 divisors (see below), whose sum is σ = 6569633952. Its totient is φ = 839520000.

The previous prime is 2878558747. The next prime is 2878558783.

2878558782 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2878558782² = 16572201322858647048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878558783) 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 47 ways as a sum of consecutive naturals, for example, 2712532 + ... + 2713592.

It is an arithmetic number, because the mean of its divisors is an integer number (68433687).

Almost surely, 2^2878558782 is an apocalyptic number.

2878558782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878558782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3284816976).

2878558782 is an abundant number, since it is smaller than the sum of its proper divisors (3691075170).

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

2878558782 is a wasteful number, since it uses less digits than its factorization.

2878558782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1215 counting only the distinct ones).

The product of its digits is 20070400, while the sum is 60.

The square root of 2878558782 is about 53652.2020237753. The cubic root of 2878558782 is about 1422.5199554075.

The spelling of 2878558782 in words is "two billion, eight hundred seventy-eight million, five hundred fifty-eight thousand, seven hundred eighty-two".