27823254449 has 4 divisors (see below), whose sum is σ = 27828015600. Its totient is φ = 27818493300.

The previous prime is 27823254419. The next prime is 27823254463. The reversal of 27823254449 is 94445232872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27823254449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27823254397 and 27823254406.

It is not an unprimeable number, because it can be changed into a prime (27823254419) 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, 2371799 + ... + 2383500.

It is an arithmetic number, because the mean of its divisors is an integer number (6957003900).

Almost surely, 2^27823254449 is an apocalyptic number.

It is an amenable number.

27823254449 is a deficient number, since it is larger than the sum of its proper divisors (4761151).

27823254449 is an equidigital number, since it uses as much as digits as its factorization.

27823254449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761150.

The product of its digits is 3870720, while the sum is 50.

The spelling of 27823254449 in words is "twenty-seven billion, eight hundred twenty-three million, two hundred fifty-four thousand, four hundred forty-nine".