28353283361 has 4 divisors (see below), whose sum is σ = 30534305172. Its totient is φ = 26172261552.

The previous prime is 28353283339. The next prime is 28353283363. The reversal of 28353283361 is 16338235382.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11513290000 + 16839993361 = 107300^2 + 129769^2 .

It is a cyclic number.

It is not a de Polignac number, because 28353283361 - 2⁶ = 28353283297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28353283363) 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, 1090510886 + ... + 1090510911.

It is an arithmetic number, because the mean of its divisors is an integer number (7633576293).

Almost surely, 2^28353283361 is an apocalyptic number.

It is an amenable number.

28353283361 is a deficient number, since it is larger than the sum of its proper divisors (2181021811).

28353283361 is a wasteful number, since it uses less digits than its factorization.

28353283361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181021810.

The product of its digits is 622080, while the sum is 44.

The spelling of 28353283361 in words is "twenty-eight billion, three hundred fifty-three million, two hundred eighty-three thousand, three hundred sixty-one".