28727210560 has 56 divisors (see below), whose sum is σ = 68427112320. Its totient is φ = 11487450624.

The previous prime is 28727210549. The next prime is 28727210591. The reversal of 28727210560 is 6501272782.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 7 ways as a sum of consecutive naturals, for example, 1242627 + ... + 1265533.

It is an arithmetic number, because the mean of its divisors is an integer number (1221912720).

Almost surely, 2^28727210560 is an apocalyptic number.

28727210560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28727210560 is an abundant number, since it is smaller than the sum of its proper divisors (39699901760).

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

28727210560 is a wasteful number, since it uses less digits than its factorization.

28727210560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26843 (or 26833 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 28727210560 in words is "twenty-eight billion, seven hundred twenty-seven million, two hundred ten thousand, five hundred sixty".