27955281860 has 48 divisors (see below), whose sum is σ = 64374936192. Its totient is φ = 10112870400.

The previous prime is 27955281859. The next prime is 27955281881. The reversal of 27955281860 is 6818255972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286736 + ... + 371655.

It is an arithmetic number, because the mean of its divisors is an integer number (1341144504).

Almost surely, 2^27955281860 is an apocalyptic number.

27955281860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27955281860 is an abundant number, since it is smaller than the sum of its proper divisors (36419654332).

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

27955281860 is a wasteful number, since it uses less digits than its factorization.

27955281860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658604 (or 658602 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 27955281860 in words is "twenty-seven billion, nine hundred fifty-five million, two hundred eighty-one thousand, eight hundred sixty".