27855343023 has 4 divisors (see below), whose sum is σ = 37140457368. Its totient is φ = 18570228680.

The previous prime is 27855343007. The next prime is 27855343027. The reversal of 27855343023 is 32034355872.

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 27855343023 - 2⁴ = 27855343007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27855343027) 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, 4642557168 + ... + 4642557173.

It is an arithmetic number, because the mean of its divisors is an integer number (9285114342).

Almost surely, 2^27855343023 is an apocalyptic number.

27855343023 is a deficient number, since it is larger than the sum of its proper divisors (9285114345).

27855343023 is an equidigital number, since it uses as much as digits as its factorization.

27855343023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285114344.

The product of its (nonzero) digits is 604800, while the sum is 42.

Adding to 27855343023 its reverse (32034355872), we get a palindrome (59889698895).

The spelling of 27855343023 in words is "twenty-seven billion, eight hundred fifty-five million, three hundred forty-three thousand, twenty-three".