28111100111182 has 16 divisors (see below), whose sum is σ = 46006976304432. Its totient is φ = 12775829915520.

The previous prime is 28111100111147. The next prime is 28111100111203.

28111100111182 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28111100111182² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28111100111182.

It is a congruent number.

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, 96995133 + ... + 97284520.

It is an arithmetic number, because the mean of its divisors is an integer number (2875436019027).

Almost surely, 2^{28111100111182} is an apocalyptic number.

28111100111182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28111100111182 is a deficient number, since it is larger than the sum of its proper divisors (17895876193250).

28111100111182 is a wasteful number, since it uses less digits than its factorization.

28111100111182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194286243.

The product of its (nonzero) digits is 256, while the sum is 28.

It can be divided in two parts, 28111100 and 111182, that added together give a palindrome (28222282).

The spelling of 28111100111182 in words is "twenty-eight trillion, one hundred eleven billion, one hundred million, one hundred eleven thousand, one hundred eighty-two".