27130361447 has 4 divisors (see below), whose sum is σ = 31006127376. Its totient is φ = 23254595520.

The previous prime is 27130361441. The next prime is 27130361471. The reversal of 27130361447 is 74416303172.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27130361447 - 2⁴ = 27130361431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27130361447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27130361441) 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, 1937882954 + ... + 1937882967.

It is an arithmetic number, because the mean of its divisors is an integer number (7751531844).

Almost surely, 2^27130361447 is an apocalyptic number.

27130361447 is a deficient number, since it is larger than the sum of its proper divisors (3875765929).

27130361447 is an equidigital number, since it uses as much as digits as its factorization.

27130361447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875765928.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 27130361447 in words is "twenty-seven billion, one hundred thirty million, three hundred sixty-one thousand, four hundred forty-seven".