28853868113 has 4 divisors (see below), whose sum is σ = 32975849280. Its totient is φ = 24731886948.

The previous prime is 28853868107. The next prime is 28853868143. The reversal of 28853868113 is 31186835882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31186835882 = 2 ⋅15593417941.

It is a cyclic number.

It is not a de Polignac number, because 28853868113 - 2⁴ = 28853868097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28853868143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2060990573 + ... + 2060990586.

It is an arithmetic number, because the mean of its divisors is an integer number (8243962320).

Almost surely, 2^28853868113 is an apocalyptic number.

It is an amenable number.

28853868113 is a deficient number, since it is larger than the sum of its proper divisors (4121981167).

28853868113 is an equidigital number, since it uses as much as digits as its factorization.

28853868113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121981166.

The product of its digits is 2211840, while the sum is 53.

The spelling of 28853868113 in words is "twenty-eight billion, eight hundred fifty-three million, eight hundred sixty-eight thousand, one hundred thirteen".