28205002286 has 4 divisors (see below), whose sum is σ = 42307503432. Its totient is φ = 14102501142.

The previous prime is 28205002213. The next prime is 28205002303. The reversal of 28205002286 is 68220050282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68220050282 = 2 ⋅34110025141.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7051250570 + ... + 7051250573.

It is an arithmetic number, because the mean of its divisors is an integer number (10576875858).

Almost surely, 2^28205002286 is an apocalyptic number.

28205002286 is a deficient number, since it is larger than the sum of its proper divisors (14102501146).

28205002286 is a wasteful number, since it uses less digits than its factorization.

28205002286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14102501145.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 28205002286 in words is "twenty-eight billion, two hundred five million, two thousand, two hundred eighty-six".