27540541264 has 20 divisors (see below), whose sum is σ = 53364592756. Its totient is φ = 13769033472.

The previous prime is 27540541253. The next prime is 27540541291. The reversal of 27540541264 is 46214504572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3515541264 + 24025000000 = 59292^2 + 155000^2 .

It is a super-2 number, since 2×27540541264² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 121882 + ... + 264454.

Almost surely, 2^27540541264 is an apocalyptic number.

It is an amenable number.

27540541264 is a deficient number, since it is larger than the sum of its proper divisors (25824051492).

27540541264 is a wasteful number, since it uses less digits than its factorization.

27540541264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154654 (or 154648 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 27540541264 in words is "twenty-seven billion, five hundred forty million, five hundred forty-one thousand, two hundred sixty-four".