27318454823 has 4 divisors (see below), whose sum is σ = 29801950728. Its totient is φ = 24834958920.

The previous prime is 27318454817. The next prime is 27318454837. The reversal of 27318454823 is 32845481372.

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 27318454823 - 2²⁰ = 27317406247 is a prime.

It is a super-2 number, since 2×27318454823² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27318454843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241747936 + ... + 1241747957.

It is an arithmetic number, because the mean of its divisors is an integer number (7450487682).

Almost surely, 2^27318454823 is an apocalyptic number.

27318454823 is a deficient number, since it is larger than the sum of its proper divisors (2483495905).

27318454823 is a wasteful number, since it uses less digits than its factorization.

27318454823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483495904.

The product of its digits is 1290240, while the sum is 47.

The spelling of 27318454823 in words is "twenty-seven billion, three hundred eighteen million, four hundred fifty-four thousand, eight hundred twenty-three".