27777648383 has 4 divisors (see below), whose sum is σ = 27977487720. Its totient is φ = 27577809048.

The previous prime is 27777648331. The next prime is 27777648391. The reversal of 27777648383 is 38384677772.

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 27777648383 - 2⁶ = 27777648319 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 (27777648313) 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, 99919460 + ... + 99919737.

It is an arithmetic number, because the mean of its divisors is an integer number (6994371930).

Almost surely, 2^27777648383 is an apocalyptic number.

27777648383 is a deficient number, since it is larger than the sum of its proper divisors (199839337).

27777648383 is a wasteful number, since it uses less digits than its factorization.

27777648383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199839336.

The product of its digits is 66382848, while the sum is 62.

The spelling of 27777648383 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred forty-eight thousand, three hundred eighty-three".