27174474849 has 4 divisors (see below), whose sum is σ = 36232633136. Its totient is φ = 18116316564.

The previous prime is 27174474787. The next prime is 27174474863. The reversal of 27174474849 is 94847447172.

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 not a de Polignac number, because 27174474849 - 2²¹ = 27172377697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27174474949) 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, 4529079139 + ... + 4529079144.

It is an arithmetic number, because the mean of its divisors is an integer number (9058158284).

Almost surely, 2^27174474849 is an apocalyptic number.

It is an amenable number.

27174474849 is a deficient number, since it is larger than the sum of its proper divisors (9058158287).

27174474849 is an equidigital number, since it uses as much as digits as its factorization.

27174474849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058158286.

The product of its digits is 12644352, while the sum is 57.

The spelling of 27174474849 in words is "twenty-seven billion, one hundred seventy-four million, four hundred seventy-four thousand, eight hundred forty-nine".