28071353600 has 54 divisors (see below), whose sum is σ = 69481002150. Its totient is φ = 11228538880.

The previous prime is 28071353579. The next prime is 28071353633. The reversal of 28071353600 is 635317082.

It can be written as a sum of positive squares in 3 ways, for example, as 864830464 + 27206523136 = 29408^2 + 164944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2186675 + ... + 2199474.

It is an arithmetic number, because the mean of its divisors is an integer number (1286685225).

Almost surely, 2^28071353600 is an apocalyptic number.

28071353600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28071353600 is an abundant number, since it is smaller than the sum of its proper divisors (41409648550).

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

28071353600 is an equidigital number, since it uses as much as digits as its factorization.

28071353600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386175 (or 4386156 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 28071353600 in words is "twenty-eight billion, seventy-one million, three hundred fifty-three thousand, six hundred".