27341643677 has 4 divisors (see below), whose sum is σ = 28949975676. Its totient is φ = 25733311680.

The previous prime is 27341643661. The next prime is 27341643689. The reversal of 27341643677 is 77634614372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21495664996 + 5845978681 = 146614^2 + 76459^2 .

It is a cyclic number.

It is not a de Polignac number, because 27341643677 - 2⁴ = 27341643661 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 (27341643577) 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, 804165974 + ... + 804166007.

It is an arithmetic number, because the mean of its divisors is an integer number (7237493919).

Almost surely, 2^27341643677 is an apocalyptic number.

It is an amenable number.

27341643677 is a deficient number, since it is larger than the sum of its proper divisors (1608331999).

27341643677 is a wasteful number, since it uses less digits than its factorization.

27341643677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608331998.

The product of its digits is 3556224, while the sum is 50.

The spelling of 27341643677 in words is "twenty-seven billion, three hundred forty-one million, six hundred forty-three thousand, six hundred seventy-seven".