27440265163 has 16 divisors (see below), whose sum is σ = 28418886144. Its totient is φ = 26480731680.

The previous prime is 27440265157. The next prime is 27440265169. The reversal of 27440265163 is 36156204472.

It is an interprime number because it is at equal distance from previous prime (27440265157) and next prime (27440265169).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27440265163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27440265169) by changing a digit.

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, 952456 + ... + 980842.

It is an arithmetic number, because the mean of its divisors is an integer number (1776180384).

Almost surely, 2^27440265163 is an apocalyptic number.

27440265163 is a deficient number, since it is larger than the sum of its proper divisors (978620981).

27440265163 is a wasteful number, since it uses less digits than its factorization.

27440265163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28722.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 27440265163 in words is "twenty-seven billion, four hundred forty million, two hundred sixty-five thousand, one hundred sixty-three".