28086163113 has 4 divisors (see below), whose sum is σ = 37448217488. Its totient is φ = 18724108740.

The previous prime is 28086163099. The next prime is 28086163139. The reversal of 28086163113 is 31136168082.

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.

It is not a de Polignac number, because 28086163113 - 2¹⁰ = 28086162089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28086163013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4681027183 + ... + 4681027188.

It is an arithmetic number, because the mean of its divisors is an integer number (9362054372).

Almost surely, 2^28086163113 is an apocalyptic number.

It is an amenable number.

28086163113 is a deficient number, since it is larger than the sum of its proper divisors (9362054375).

28086163113 is an equidigital number, since it uses as much as digits as its factorization.

28086163113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362054374.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 28086163113 in words is "twenty-eight billion, eighty-six million, one hundred sixty-three thousand, one hundred thirteen".