28100384700 has 36 divisors (see below), whose sum is σ = 81303780600. Its totient is φ = 7493435840.

The previous prime is 28100384693. The next prime is 28100384749. The reversal of 28100384700 is 748300182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46833675 + ... + 46834274.

It is an arithmetic number, because the mean of its divisors is an integer number (2258438350).

Almost surely, 2^28100384700 is an apocalyptic number.

28100384700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28100384700 is an abundant number, since it is smaller than the sum of its proper divisors (53203395900).

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

28100384700 is a wasteful number, since it uses less digits than its factorization.

28100384700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93667966 (or 93667959 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 28100384700 its reverse (748300182), we get a palindrome (28848684882).

The spelling of 28100384700 in words is "twenty-eight billion, one hundred million, three hundred eighty-four thousand, seven hundred".