27128314441 has 4 divisors (see below), whose sum is σ = 27128784384. Its totient is φ = 27127844500.

The previous prime is 27128314429. The next prime is 27128314453. The reversal of 27128314441 is 14441382172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27128314429) and next prime (27128314453).

It is a cyclic number.

It is not a de Polignac number, because 27128314441 - 2¹⁵ = 27128281673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27128314441.

It is not an unprimeable number, because it can be changed into a prime (27128314481) 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 3 ways as a sum of consecutive naturals, for example, 133885 + ... + 268666.

It is an arithmetic number, because the mean of its divisors is an integer number (6782196096).

Almost surely, 2^27128314441 is an apocalyptic number.

It is an amenable number.

27128314441 is a deficient number, since it is larger than the sum of its proper divisors (469943).

27128314441 is an equidigital number, since it uses as much as digits as its factorization.

27128314441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469942.

The product of its digits is 43008, while the sum is 37.

The spelling of 27128314441 in words is "twenty-seven billion, one hundred twenty-eight million, three hundred fourteen thousand, four hundred forty-one".