27768385271 has 8 divisors (see below), whose sum is σ = 30311771664. Its totient is φ = 25228163520.

The previous prime is 27768385199. The next prime is 27768385273. The reversal of 27768385271 is 17258386772.

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 27768385271 - 2¹⁰ = 27768384247 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 (27768385273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772790 + ... + 807923.

It is an arithmetic number, because the mean of its divisors is an integer number (3788971458).

Almost surely, 2^27768385271 is an apocalyptic number.

27768385271 is a deficient number, since it is larger than the sum of its proper divisors (2543386393).

27768385271 is a wasteful number, since it uses less digits than its factorization.

27768385271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582321.

The product of its digits is 7902720, while the sum is 56.

The spelling of 27768385271 in words is "twenty-seven billion, seven hundred sixty-eight million, three hundred eighty-five thousand, two hundred seventy-one".