27454838393 has 4 divisors (see below), whose sum is σ = 27455557248. Its totient is φ = 27454119540.

The previous prime is 27454838377. The next prime is 27454838401. The reversal of 27454838393 is 39383845472.

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 not a de Polignac number, because 27454838393 - 2⁴ = 27454838377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27454838303) 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, 298721 + ... + 379662.

It is an arithmetic number, because the mean of its divisors is an integer number (6863889312).

Almost surely, 2^27454838393 is an apocalyptic number.

It is an amenable number.

27454838393 is a deficient number, since it is larger than the sum of its proper divisors (718855).

27454838393 is an equidigital number, since it uses as much as digits as its factorization.

27454838393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718854.

The product of its digits is 17418240, while the sum is 56.

The spelling of 27454838393 in words is "twenty-seven billion, four hundred fifty-four million, eight hundred thirty-eight thousand, three hundred ninety-three".