28223066444 has 6 divisors (see below), whose sum is σ = 49390366284. Its totient is φ = 14111533220.

The previous prime is 28223066437. The next prime is 28223066453. The reversal of 28223066444 is 44466032282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3527883302 + ... + 3527883309.

It is an arithmetic number, because the mean of its divisors is an integer number (8231727714).

Almost surely, 2^28223066444 is an apocalyptic number.

It is an amenable number.

28223066444 is a deficient number, since it is larger than the sum of its proper divisors (21167299840).

28223066444 is a wasteful number, since it uses less digits than its factorization.

28223066444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055766615 (or 7055766613 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 28223066444 in words is "twenty-eight billion, two hundred twenty-three million, sixty-six thousand, four hundred forty-four".