27768206180 has 48 divisors (see below), whose sum is σ = 68507861184. Its totient is φ = 9320795520.

The previous prime is 27768206171. The next prime is 27768206233. The reversal of 27768206180 is 8160286772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4851722 + ... + 4857441.

It is an arithmetic number, because the mean of its divisors is an integer number (1427247108).

Almost surely, 2^27768206180 is an apocalyptic number.

27768206180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27768206180 is an abundant number, since it is smaller than the sum of its proper divisors (40739655004).

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

27768206180 is a wasteful number, since it uses less digits than its factorization.

27768206180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9709196 (or 9709194 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 27768206180 in words is "twenty-seven billion, seven hundred sixty-eight million, two hundred six thousand, one hundred eighty".