28030004988 has 24 divisors (see below), whose sum is σ = 65407934592. Its totient is φ = 9342679344.

The previous prime is 28030004963. The next prime is 28030005001. The reversal of 28030004988 is 88940003082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115131 + ... + 263277.

It is an arithmetic number, because the mean of its divisors is an integer number (2725330608).

Almost surely, 2^28030004988 is an apocalyptic number.

It is an amenable number.

28030004988 is an abundant number, since it is smaller than the sum of its proper divisors (37377929604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28030004988 is a wasteful number, since it uses less digits than its factorization.

28030004988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163921 (or 163919 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 28030004988 in words is "twenty-eight billion, thirty million, four thousand, nine hundred eighty-eight".