28265884018 has 8 divisors (see below), whose sum is σ = 42402704112. Its totient is φ = 14131649316.

The previous prime is 28265883959. The next prime is 28265884019. The reversal of 28265884018 is 81048856282.

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

It is not an unprimeable number, because it can be changed into a prime (28265884019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618780 + ... + 662887.

It is an arithmetic number, because the mean of its divisors is an integer number (5300338014).

Almost surely, 2^28265884018 is an apocalyptic number.

28265884018 is a deficient number, since it is larger than the sum of its proper divisors (14136820094).

28265884018 is a wasteful number, since it uses less digits than its factorization.

28265884018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292696.

The product of its (nonzero) digits is 1966080, while the sum is 52.

The spelling of 28265884018 in words is "twenty-eight billion, two hundred sixty-five million, eight hundred eighty-four thousand, eighteen".