2889787280 has 40 divisors (see below), whose sum is σ = 6794263800. Its totient is φ = 1142924288.

The previous prime is 2889787267. The next prime is 2889787291. The reversal of 2889787280 is 827879882.

2889787280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 745726864 + 2144060416 = 27308^2 + 46304^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195815 + ... + 210054.

It is an arithmetic number, because the mean of its divisors is an integer number (169856595).

Almost surely, 2^2889787280 is an apocalyptic number.

2889787280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2889787280 is an abundant number, since it is smaller than the sum of its proper divisors (3904476520).

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

2889787280 is a wasteful number, since it uses less digits than its factorization.

2889787280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405971 (or 405965 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 59.

The square root of 2889787280 is about 53756.7417167373. The cubic root of 2889787280 is about 1424.3671805947.

The spelling of 2889787280 in words is "two billion, eight hundred eighty-nine million, seven hundred eighty-seven thousand, two hundred eighty".