27131545105 has 8 divisors (see below), whose sum is σ = 37208976192. Its totient is φ = 18604488048.

The previous prime is 27131545093. The next prime is 27131545141. The reversal of 27131545105 is 50154513172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27131545105 - 2²⁹ = 26594674193 is a prime.

It is a super-2 number, since 2×27131545105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387593467 + ... + 387593536.

It is an arithmetic number, because the mean of its divisors is an integer number (4651122024).

Almost surely, 2^27131545105 is an apocalyptic number.

It is an amenable number.

27131545105 is a deficient number, since it is larger than the sum of its proper divisors (10077431087).

27131545105 is an equidigital number, since it uses as much as digits as its factorization.

27131545105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775187015.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 27131545105 in words is "twenty-seven billion, one hundred thirty-one million, five hundred forty-five thousand, one hundred five".