27481560329 has 4 divisors (see below), whose sum is σ = 27488576640. Its totient is φ = 27474544020.

The previous prime is 27481560277. The next prime is 27481560331. The reversal of 27481560329 is 92306518472.

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 a cyclic number.

It is not a de Polignac number, because 27481560329 - 2²⁴ = 27464783113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27481560349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3502277 + ... + 3510114.

It is an arithmetic number, because the mean of its divisors is an integer number (6872144160).

It is a 1-persistent number, because it is pandigital, but 2⋅27481560329 = 54963120658 is not.

Almost surely, 2^27481560329 is an apocalyptic number.

It is an amenable number.

27481560329 is a deficient number, since it is larger than the sum of its proper divisors (7016311).

27481560329 is an equidigital number, since it uses as much as digits as its factorization.

27481560329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016310.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 27481560329 in words is "twenty-seven billion, four hundred eighty-one million, five hundred sixty thousand, three hundred twenty-nine".