2878628544 has 392 divisors, whose sum is σ = 9594616320. Its totient is φ = 849139200.

The previous prime is 2878628539. The next prime is 2878628561. The reversal of 2878628544 is 4458268782.

2878628544 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 628 + 5 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 55 ways as a sum of consecutive naturals, for example, 36438297 + ... + 36438375.

Almost surely, 2^2878628544 is an apocalyptic number.

2878628544 is a gapful number since it is divisible by the number (24) 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 2878628544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4797308160).

2878628544 is an abundant number, since it is smaller than the sum of its proper divisors (6715987776).

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

2878628544 is an equidigital number, since it uses as much as digits as its factorization.

2878628544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 166 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The square root of 2878628544 is about 53652.8521515865. The cubic root of 2878628544 is about 1422.5314469261.

The spelling of 2878628544 in words is "two billion, eight hundred seventy-eight million, six hundred twenty-eight thousand, five hundred forty-four".