27480736065 has 16 divisors (see below), whose sum is σ = 43977110400. Its totient is φ = 14653748352.

The previous prime is 27480736061. The next prime is 27480736093. The reversal of 27480736065 is 56063708472.

It is not a de Polignac number, because 27480736065 - 2² = 27480736061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27480736061) by changing a digit.

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, 77860 + ... + 247029.

It is an arithmetic number, because the mean of its divisors is an integer number (2748569400).

Almost surely, 2^27480736065 is an apocalyptic number.

It is an amenable number.

27480736065 is a deficient number, since it is larger than the sum of its proper divisors (16496374335).

27480736065 is a wasteful number, since it uses less digits than its factorization.

27480736065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330536.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 27480736065 in words is "twenty-seven billion, four hundred eighty million, seven hundred thirty-six thousand, sixty-five".