28723325300 has 18 divisors (see below), whose sum is σ = 62329616118. Its totient is φ = 11489330080.

The previous prime is 28723325299. The next prime is 28723325321. The reversal of 28723325300 is 352332782.

It can be written as a sum of positive squares in 3 ways, for example, as 3265208164 + 25458117136 = 57142^2 + 159556^2 .

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, 143616527 + ... + 143616726.

It is an arithmetic number, because the mean of its divisors is an integer number (3462756451).

Almost surely, 2^28723325300 is an apocalyptic number.

28723325300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28723325300 is an abundant number, since it is smaller than the sum of its proper divisors (33606290818).

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

28723325300 is a wasteful number, since it uses less digits than its factorization.

28723325300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287233267 (or 287233260 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 28723325300 in words is "twenty-eight billion, seven hundred twenty-three million, three hundred twenty-five thousand, three hundred".