27331389523 has 4 divisors (see below), whose sum is σ = 27343798168. Its totient is φ = 27318980880.

The previous prime is 27331389497. The next prime is 27331389539. The reversal of 27331389523 is 32598313372.

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

It is a cyclic number.

It is not a de Polignac number, because 27331389523 - 2²⁵ = 27297835091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27331389563) 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, 6201018 + ... + 6205423.

It is an arithmetic number, because the mean of its divisors is an integer number (6835949542).

Almost surely, 2^27331389523 is an apocalyptic number.

27331389523 is a deficient number, since it is larger than the sum of its proper divisors (12408645).

27331389523 is a wasteful number, since it uses less digits than its factorization.

27331389523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12408644.

The product of its digits is 816480, while the sum is 46.

The spelling of 27331389523 in words is "twenty-seven billion, three hundred thirty-one million, three hundred eighty-nine thousand, five hundred twenty-three".