27280805600 has 72 divisors (see below), whose sum is σ = 67221900648. Its totient is φ = 10810304000.

The previous prime is 27280805567. The next prime is 27280805639. The reversal of 27280805600 is 650808272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73751 + ... + 244950.

It is an arithmetic number, because the mean of its divisors is an integer number (933637509).

Almost surely, 2^27280805600 is an apocalyptic number.

27280805600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27280805600 is an abundant number, since it is smaller than the sum of its proper divisors (39941095048).

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

27280805600 is a wasteful number, since it uses less digits than its factorization.

27280805600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318828 (or 318815 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 27280805600 in words is "twenty-seven billion, two hundred eighty million, eight hundred five thousand, six hundred".