27181677313 has 4 divisors (see below), whose sum is σ = 31064774080. Its totient is φ = 23298580548.

The previous prime is 27181677307. The next prime is 27181677317. The reversal of 27181677313 is 31377618172.

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 a de Polignac number, because none of the positive numbers 2^k-27181677313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27181677317) 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, 1941548373 + ... + 1941548386.

It is an arithmetic number, because the mean of its divisors is an integer number (7766193520).

Almost surely, 2^27181677313 is an apocalyptic number.

It is an amenable number.

27181677313 is a deficient number, since it is larger than the sum of its proper divisors (3883096767).

27181677313 is an equidigital number, since it uses as much as digits as its factorization.

27181677313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883096766.

The product of its digits is 296352, while the sum is 46.

The spelling of 27181677313 in words is "twenty-seven billion, one hundred eighty-one million, six hundred seventy-seven thousand, three hundred thirteen".