27668268180 has 144 divisors (see below), whose sum is σ = 99010888704. Its totient is φ = 6120161280.

The previous prime is 27668268161. The next prime is 27668268181. The reversal of 27668268180 is 8186286672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27668268181) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 315117 + ... + 393236.

It is an arithmetic number, because the mean of its divisors is an integer number (687575616).

Almost surely, 2^27668268180 is an apocalyptic number.

27668268180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27668268180 is an abundant number, since it is smaller than the sum of its proper divisors (71342620524).

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

27668268180 is a wasteful number, since it uses less digits than its factorization.

27668268180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708406 (or 708401 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 27668268180 in words is "twenty-seven billion, six hundred sixty-eight million, two hundred sixty-eight thousand, one hundred eighty".