27771306313 has 4 divisors (see below), whose sum is σ = 28242006480. Its totient is φ = 27300606148.

The previous prime is 27771306307. The next prime is 27771306379. The reversal of 27771306313 is 31360317772.

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 27771306313 - 2⁹ = 27771305801 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27771306613) 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, 235349995 + ... + 235350112.

It is an arithmetic number, because the mean of its divisors is an integer number (7060501620).

Almost surely, 2^27771306313 is an apocalyptic number.

It is an amenable number.

27771306313 is a deficient number, since it is larger than the sum of its proper divisors (470700167).

27771306313 is an equidigital number, since it uses as much as digits as its factorization.

27771306313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470700166.

The product of its (nonzero) digits is 111132, while the sum is 40.

It can be divided in two parts, 27771 and 306313, that added together give a square (334084 = 578²).

The spelling of 27771306313 in words is "twenty-seven billion, seven hundred seventy-one million, three hundred six thousand, three hundred thirteen".