28027800504 has 96 divisors (see below), whose sum is σ = 83613628800. Its totient is φ = 8410789440.

The previous prime is 28027800481. The next prime is 28027800511. The reversal of 28027800504 is 40500872082.

It is a happy number.

28027800504 is a `hidden beast` number, since 2 + 80 + 2 + 78 + 0 + 0 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 90214 + ... + 253365.

It is an arithmetic number, because the mean of its divisors is an integer number (870975300).

Almost surely, 2^28027800504 is an apocalyptic number.

28027800504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28027800504 is an abundant number, since it is smaller than the sum of its proper divisors (55585828296).

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

28027800504 is a wasteful number, since it uses less digits than its factorization.

28027800504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343705 (or 343698 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 28027800504 in words is "twenty-eight billion, twenty-seven million, eight hundred thousand, five hundred four".