28280841826 has 8 divisors (see below), whose sum is σ = 42422037840. Its totient is φ = 14140162548.

The previous prime is 28280841803. The next prime is 28280841893. The reversal of 28280841826 is 62814808282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28280841826.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67585 + ... + 247243.

It is an arithmetic number, because the mean of its divisors is an integer number (5302754730).

Almost surely, 2^28280841826 is an apocalyptic number.

28280841826 is a deficient number, since it is larger than the sum of its proper divisors (14141196014).

28280841826 is a wasteful number, since it uses less digits than its factorization.

28280841826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258368.

The product of its (nonzero) digits is 786432, while the sum is 49.

The spelling of 28280841826 in words is "twenty-eight billion, two hundred eighty million, eight hundred forty-one thousand, eight hundred twenty-six".