28618442084 has 12 divisors (see below), whose sum is σ = 50095469424. Its totient is φ = 14305450824.

The previous prime is 28618442051. The next prime is 28618442089. The reversal of 28618442084 is 48024481682.

It is not an unprimeable number, because it can be changed into a prime (28618442089) 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, 925442 + ... + 955865.

It is an arithmetic number, because the mean of its divisors is an integer number (4174622452).

Almost surely, 2^28618442084 is an apocalyptic number.

It is an amenable number.

28618442084 is a deficient number, since it is larger than the sum of its proper divisors (21477027340).

28618442084 is a wasteful number, since it uses less digits than its factorization.

28618442084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885114 (or 1885112 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 47.

The spelling of 28618442084 in words is "twenty-eight billion, six hundred eighteen million, four hundred forty-two thousand, eighty-four".