28105119406 has 64 divisors (see below), whose sum is σ = 55096288128. Its totient is φ = 10434428928.

The previous prime is 28105119359. The next prime is 28105119433. The reversal of 28105119406 is 60491150182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079316 + ... + 1105048.

It is an arithmetic number, because the mean of its divisors is an integer number (860879502).

Almost surely, 2^28105119406 is an apocalyptic number.

28105119406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28105119406 is a deficient number, since it is larger than the sum of its proper divisors (26991168722).

28105119406 is a wasteful number, since it uses less digits than its factorization.

28105119406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26125.

The product of its (nonzero) digits is 17280, while the sum is 37.

Adding to 28105119406 its reverse (60491150182), we get a palindrome (88596269588).

The spelling of 28105119406 in words is "twenty-eight billion, one hundred five million, one hundred nineteen thousand, four hundred six".