2728382011111 has 8 divisors (see below), whose sum is σ = 2744952989184. Its totient is φ = 2711813811480.

The previous prime is 2728382011097. The next prime is 2728382011127. The reversal of 2728382011111 is 1111102838272.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2728382011111 - 2¹³ = 2728382002919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728382051111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292526 + ... + 2669716.

It is an arithmetic number, because the mean of its divisors is an integer number (343119123648).

Almost surely, 2^{2728382011111} is an apocalyptic number.

2728382011111 is a deficient number, since it is larger than the sum of its proper divisors (16570978073).

2728382011111 is a wasteful number, since it uses less digits than its factorization.

2728382011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389221.

The product of its (nonzero) digits is 10752, while the sum is 37.

Adding to 2728382011111 its reverse (1111102838272), we get a palindrome (3839484849383).

The spelling of 2728382011111 in words is "two trillion, seven hundred twenty-eight billion, three hundred eighty-two million, eleven thousand, one hundred eleven".