27312173711 has 4 divisors (see below), whose sum is σ = 27316349424. Its totient is φ = 27307998000.

The previous prime is 27312173687. The next prime is 27312173731. The reversal of 27312173711 is 11737121372.

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-27312173711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312173731) 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, 2078030 + ... + 2091131.

It is an arithmetic number, because the mean of its divisors is an integer number (6829087356).

Almost surely, 2^27312173711 is an apocalyptic number.

27312173711 is a deficient number, since it is larger than the sum of its proper divisors (4175713).

27312173711 is an equidigital number, since it uses as much as digits as its factorization.

27312173711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175712.

The product of its digits is 12348, while the sum is 35.

The spelling of 27312173711 in words is "twenty-seven billion, three hundred twelve million, one hundred seventy-three thousand, seven hundred eleven".