28028441218 has 8 divisors (see below), whose sum is σ = 42345127440. Its totient is φ = 13913398740.

The previous prime is 28028441209. The next prime is 28028441249. The reversal of 28028441218 is 81214482082.

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

It is a super-2 number, since 2×28028441218² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50410588 + ... + 50411143.

It is an arithmetic number, because the mean of its divisors is an integer number (5293140930).

Almost surely, 2^28028441218 is an apocalyptic number.

28028441218 is a deficient number, since it is larger than the sum of its proper divisors (14316686222).

28028441218 is a wasteful number, since it uses less digits than its factorization.

28028441218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100821872.

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 28028441218 in words is "twenty-eight billion, twenty-eight million, four hundred forty-one thousand, two hundred eighteen".