2811791232 has 160 divisors (see below), whose sum is σ = 8452295280. Its totient is φ = 927811584.

The previous prime is 2811791231. The next prime is 2811791243. The reversal of 2811791232 is 2321971182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811791231) 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 19 ways as a sum of consecutive naturals, for example, 1066588 + ... + 1069220.

Almost surely, 2^2811791232 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 2811791232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4226147640).

2811791232 is an abundant number, since it is smaller than the sum of its proper divisors (5640504048).

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

2811791232 is a wasteful number, since it uses less digits than its factorization.

2811791232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2741 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 2811791232 is about 53026.3258391528. The cubic root of 2811791232 is about 1411.4354598088.

The spelling of 2811791232 in words is "two billion, eight hundred eleven million, seven hundred ninety-one thousand, two hundred thirty-two".