28343198113 has 6 divisors (see below), whose sum is σ = 28518176274. Its totient is φ = 28169287056.

The previous prime is 28343198087. The next prime is 28343198141. The reversal of 28343198113 is 31189134382.

It can be written as a sum of positive squares in only one way, i.e., 27696614929 + 646583184 = 166423^2 + 25428^2 .

It is not a de Polignac number, because 28343198113 - 2¹³ = 28343189921 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 28343198113.

It is not an unprimeable number, because it can be changed into a prime (28343198153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506820 + ... + 559957.

It is an arithmetic number, because the mean of its divisors is an integer number (4753029379).

Almost surely, 2^28343198113 is an apocalyptic number.

It is an amenable number.

28343198113 is a deficient number, since it is larger than the sum of its proper divisors (174978161).

28343198113 is an equidigital number, since it uses as much as digits as its factorization.

28343198113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067103 (or 1066940 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The spelling of 28343198113 in words is "twenty-eight billion, three hundred forty-three million, one hundred ninety-eight thousand, one hundred thirteen".