27453242427 has 16 divisors (see below), whose sum is σ = 40258767360. Its totient is φ = 16534848672.

The previous prime is 27453242419. The next prime is 27453242437. The reversal of 27453242427 is 72424235472.

It is not a de Polignac number, because 27453242427 - 2³ = 27453242419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27453242417) 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, 7486777 + ... + 7490442.

It is an arithmetic number, because the mean of its divisors is an integer number (2516172960).

Almost surely, 2^27453242427 is an apocalyptic number.

27453242427 is a deficient number, since it is larger than the sum of its proper divisors (12805524933).

27453242427 is a wasteful number, since it uses less digits than its factorization.

27453242427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977282.

The product of its digits is 752640, while the sum is 42.

Adding to 27453242427 its reverse (72424235472), we get a palindrome (99877477899).

The spelling of 27453242427 in words is "twenty-seven billion, four hundred fifty-three million, two hundred forty-two thousand, four hundred twenty-seven".