2811082728 has 64 divisors (see below), whose sum is σ = 7266424320. Its totient is φ = 905299200.

The previous prime is 2811082717. The next prime is 2811082751. The reversal of 2811082728 is 8272801182.

It is a super-2 number, since 2×2811082728² = 15804372207319843968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500898 + ... + 506478.

It is an arithmetic number, because the mean of its divisors is an integer number (113537880).

Almost surely, 2^2811082728 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 2811082728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3633212160).

2811082728 is an abundant number, since it is smaller than the sum of its proper divisors (4455341592).

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

2811082728 is a wasteful number, since it uses less digits than its factorization.

2811082728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298 (or 6294 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 2811082728 is about 53019.6447366445. The cubic root of 2811082728 is about 1411.3169005476.

The spelling of 2811082728 in words is "two billion, eight hundred eleven million, eighty-two thousand, seven hundred twenty-eight".