27495108131 has 4 divisors (see below), whose sum is σ = 27778562952. Its totient is φ = 27211653312.

The previous prime is 27495108103. The next prime is 27495108143. The reversal of 27495108131 is 13180159472.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27495108131 is a prime.

It is a super-2 number, since 2×27495108131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27495108161) 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, 141727265 + ... + 141727458.

It is an arithmetic number, because the mean of its divisors is an integer number (6944640738).

Almost surely, 2^27495108131 is an apocalyptic number.

27495108131 is a deficient number, since it is larger than the sum of its proper divisors (283454821).

27495108131 is an equidigital number, since it uses as much as digits as its factorization.

27495108131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283454820.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 27495108131 in words is "twenty-seven billion, four hundred ninety-five million, one hundred eight thousand, one hundred thirty-one".