27341643673 has 4 divisors (see below), whose sum is σ = 27359503888. Its totient is φ = 27323783460.

The previous prime is 27341643661. The next prime is 27341643689. The reversal of 27341643673 is 37634614372.

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-27341643673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27341643773) 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, 8927811 + ... + 8930872.

It is an arithmetic number, because the mean of its divisors is an integer number (6839875972).

Almost surely, 2^27341643673 is an apocalyptic number.

It is an amenable number.

27341643673 is a deficient number, since it is larger than the sum of its proper divisors (17860215).

27341643673 is a wasteful number, since it uses less digits than its factorization.

27341643673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17860214.

The product of its digits is 1524096, while the sum is 46.

The spelling of 27341643673 in words is "twenty-seven billion, three hundred forty-one million, six hundred forty-three thousand, six hundred seventy-three".