27672535543 has 4 divisors (see below), whose sum is σ = 27680851440. Its totient is φ = 27664219648.

The previous prime is 27672535507. The next prime is 27672535549. The reversal of 27672535543 is 34553527672.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27672535543 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27672535549) 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, 4152955 + ... + 4159612.

It is an arithmetic number, because the mean of its divisors is an integer number (6920212860).

Almost surely, 2^27672535543 is an apocalyptic number.

27672535543 is a deficient number, since it is larger than the sum of its proper divisors (8315897).

27672535543 is an equidigital number, since it uses as much as digits as its factorization.

27672535543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315896.

The product of its digits is 5292000, while the sum is 49.

The spelling of 27672535543 in words is "twenty-seven billion, six hundred seventy-two million, five hundred thirty-five thousand, five hundred forty-three".