28118119679 has 8 divisors (see below), whose sum is σ = 30296744352. Its totient is φ = 25941736800.

The previous prime is 28118119669. The next prime is 28118119693. The reversal of 28118119679 is 97691181182.

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 28118119679 - 2¹⁶ = 28118054143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28118119679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28118119669) 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, 534347 + ... + 584604.

It is an arithmetic number, because the mean of its divisors is an integer number (3787093044).

Almost surely, 2^28118119679 is an apocalyptic number.

28118119679 is a deficient number, since it is larger than the sum of its proper divisors (2178624673).

28118119679 is a wasteful number, since it uses less digits than its factorization.

28118119679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120897.

The product of its digits is 435456, while the sum is 53.

The spelling of 28118119679 in words is "twenty-eight billion, one hundred eighteen million, one hundred nineteen thousand, six hundred seventy-nine".