27731485223 has 8 divisors (see below), whose sum is σ = 30559204368. Its totient is φ = 25002984384.

The previous prime is 27731485217. The next prime is 27731485231. The reversal of 27731485223 is 32258413772.

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 27731485223 - 2⁸ = 27731484967 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 (27731485423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24803990 + ... + 24805107.

It is an arithmetic number, because the mean of its divisors is an integer number (3819900546).

Almost surely, 2^27731485223 is an apocalyptic number.

27731485223 is a deficient number, since it is larger than the sum of its proper divisors (2827719145).

27731485223 is a wasteful number, since it uses less digits than its factorization.

27731485223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49609153.

The product of its digits is 564480, while the sum is 44.

Adding to 27731485223 its reverse (32258413772), we get a palindrome (59989898995).

The spelling of 27731485223 in words is "twenty-seven billion, seven hundred thirty-one million, four hundred eighty-five thousand, two hundred twenty-three".