28236364103 has 4 divisors (see below), whose sum is σ = 28283347008. Its totient is φ = 28189381200.

The previous prime is 28236364049. The next prime is 28236364109. The reversal of 28236364103 is 30146363282.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28236364103 - 2¹⁰ = 28236363079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28236364109) 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, 23490551 + ... + 23491752.

It is an arithmetic number, because the mean of its divisors is an integer number (7070836752).

Almost surely, 2^28236364103 is an apocalyptic number.

28236364103 is a deficient number, since it is larger than the sum of its proper divisors (46982905).

28236364103 is an equidigital number, since it uses as much as digits as its factorization.

28236364103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46982904.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 28236364103 in words is "twenty-eight billion, two hundred thirty-six million, three hundred sixty-four thousand, one hundred three".