2891388288 has 256 divisors, whose sum is σ = 8482760640. Its totient is φ = 869007360.

The previous prime is 2891388287. The next prime is 2891388323. The reversal of 2891388288 is 8828831982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891388287) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 21104956 + ... + 21105092.

Almost surely, 2^2891388288 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 2891388288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4241380320).

2891388288 is an abundant number, since it is smaller than the sum of its proper divisors (5591372352).

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

2891388288 is a wasteful number, since it uses less digits than its factorization.

2891388288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 273 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 57.

The square root of 2891388288 is about 53771.6308846961. The cubic root of 2891388288 is about 1424.6301759901.

The spelling of 2891388288 in words is "two billion, eight hundred ninety-one million, three hundred eighty-eight thousand, two hundred eighty-eight".