2878799616 has 432 divisors, whose sum is σ = 10749543168. Its totient is φ = 746496000.

The previous prime is 2878799537. The next prime is 2878799681. The reversal of 2878799616 is 6169978782.

2878799616 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 7 + 9 + 9 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 4789716 + ... + 4790316.

Almost surely, 2^2878799616 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 2878799616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5374771584).

2878799616 is an abundant number, since it is smaller than the sum of its proper divisors (7870743552).

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

2878799616 is an equidigital number, since it uses as much as digits as its factorization.

2878799616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 624 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The square root of 2878799616 is about 53654.4463767916. The cubic root of 2878799616 is about 1422.5596259097.

The spelling of 2878799616 in words is "two billion, eight hundred seventy-eight million, seven hundred ninety-nine thousand, six hundred sixteen".