280220728200000 has 672 divisors, whose sum is σ = 1059419723298048. Its totient is φ = 64031109120000.

The previous prime is 280220728199983. The next prime is 280220728200029. The reversal of 280220728200000 is 2827022082.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17543392014 + ... + 17543407986.

It is an arithmetic number, because the mean of its divisors is an integer number (1576517445384).

Almost surely, 2^{280220728200000} is an apocalyptic number.

280220728200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280220728200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529709861649024).

280220728200000 is an abundant number, since it is smaller than the sum of its proper divisors (779198995098048).

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

280220728200000 is an equidigital number, since it uses as much as digits as its factorization.

280220728200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20197 (or 20167 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The spelling of 280220728200000 in words is "two hundred eighty trillion, two hundred twenty billion, seven hundred twenty-eight million, two hundred thousand".