27740286505 has 8 divisors (see below), whose sum is σ = 33289869312. Its totient is φ = 22191212208.

The previous prime is 27740286479. The next prime is 27740286527. The reversal of 27740286505 is 50568204772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27740286505 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5464 + ... + 235606.

It is an arithmetic number, because the mean of its divisors is an integer number (4161233664).

Almost surely, 2^27740286505 is an apocalyptic number.

It is an amenable number.

27740286505 is a deficient number, since it is larger than the sum of its proper divisors (5549582807).

27740286505 is a wasteful number, since it uses less digits than its factorization.

27740286505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254255.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 27740286505 in words is "twenty-seven billion, seven hundred forty million, two hundred eighty-six thousand, five hundred five".