27111206540 has 48 divisors (see below), whose sum is σ = 63624191904. Its totient is φ = 9618163200.

The previous prime is 27111206531. The next prime is 27111206561. The reversal of 27111206540 is 4560211172.

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, 1493819 + ... + 1511858.

It is an arithmetic number, because the mean of its divisors is an integer number (1325503998).

Almost surely, 2^27111206540 is an apocalyptic number.

27111206540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27111206540 is an abundant number, since it is smaller than the sum of its proper divisors (36512985364).

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

27111206540 is a wasteful number, since it uses less digits than its factorization.

27111206540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005738 (or 3005736 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 27111206540 in words is "twenty-seven billion, one hundred eleven million, two hundred six thousand, five hundred forty".