28030555558 has 8 divisors (see below), whose sum is σ = 42758474760. Its totient is φ = 13777730640.

The previous prime is 28030555541. The next prime is 28030555559. The reversal of 28030555558 is 85555503082.

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

It is a super-3 number, since 3×28030555558³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030555559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118773423 + ... + 118773658.

It is an arithmetic number, because the mean of its divisors is an integer number (5344809345).

Almost surely, 2^28030555558 is an apocalyptic number.

28030555558 is a deficient number, since it is larger than the sum of its proper divisors (14727919202).

28030555558 is a wasteful number, since it uses less digits than its factorization.

28030555558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237547142.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 28030555558 in words is "twenty-eight billion, thirty million, five hundred fifty-five thousand, five hundred fifty-eight".