28385420088 has 16 divisors (see below), whose sum is σ = 70963550280. Its totient is φ = 9461806688.

The previous prime is 28385420071. The next prime is 28385420093. The reversal of 28385420088 is 88002458382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591362895 + ... + 591362942.

Almost surely, 2^28385420088 is an apocalyptic number.

It is an amenable number.

28385420088 is an abundant number, since it is smaller than the sum of its proper divisors (42578130192).

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

28385420088 is a wasteful number, since it uses less digits than its factorization.

28385420088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182725846 (or 1182725842 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 28385420088 in words is "twenty-eight billion, three hundred eighty-five million, four hundred twenty thousand, eighty-eight".