27423108019 has 4 divisors (see below), whose sum is σ = 27887906520. Its totient is φ = 26958309520.

The previous prime is 27423107993. The next prime is 27423108079. The reversal of 27423108019 is 91080132472.

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 27423108019 - 2¹¹ = 27423105971 is a prime.

It is a super-2 number, since 2×27423108019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27423108079) 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 3 ways as a sum of consecutive naturals, for example, 232399162 + ... + 232399279.

It is an arithmetic number, because the mean of its divisors is an integer number (6971976630).

Almost surely, 2^27423108019 is an apocalyptic number.

27423108019 is a deficient number, since it is larger than the sum of its proper divisors (464798501).

27423108019 is an equidigital number, since it uses as much as digits as its factorization.

27423108019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464798500.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 27423108019 in words is "twenty-seven billion, four hundred twenty-three million, one hundred eight thousand, nineteen".