28280782300 has 36 divisors (see below), whose sum is σ = 63348959296. Its totient is φ = 10947398400.

The previous prime is 28280782289. The next prime is 28280782301. The reversal of 28280782300 is 328708282.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28280782301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4558317 + ... + 4564516.

Almost surely, 2^28280782300 is an apocalyptic number.

28280782300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28280782300 is an abundant number, since it is smaller than the sum of its proper divisors (35068176996).

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

28280782300 is a wasteful number, since it uses less digits than its factorization.

28280782300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122878 (or 9122871 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 28280782300 in words is "twenty-eight billion, two hundred eighty million, seven hundred eighty-two thousand, three hundred".