27456794863 has 4 divisors (see below), whose sum is σ = 27511819000. Its totient is φ = 27401770728.

The previous prime is 27456794861. The next prime is 27456794867. The reversal of 27456794863 is 36849765472.

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 27456794863 - 2¹ = 27456794861 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 (27456794861) 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, 27511320 + ... + 27512317.

It is an arithmetic number, because the mean of its divisors is an integer number (6877954750).

Almost surely, 2^27456794863 is an apocalyptic number.

27456794863 is a deficient number, since it is larger than the sum of its proper divisors (55024137).

27456794863 is an equidigital number, since it uses as much as digits as its factorization.

27456794863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55024136.

The product of its digits is 60963840, while the sum is 61.

The spelling of 27456794863 in words is "twenty-seven billion, four hundred fifty-six million, seven hundred ninety-four thousand, eight hundred sixty-three".