27546378113 has 2 divisors, whose sum is σ = 27546378114. Its totient is φ = 27546378112.

The previous prime is 27546378091. The next prime is 27546378143. The reversal of 27546378113 is 31187364572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27527123569 + 19254544 = 165913^2 + 4388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27546378113 is a prime.

It is not a weakly prime, because it can be changed into another prime (27546378143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13773189056 + 13773189057.

It is an arithmetic number, because the mean of its divisors is an integer number (13773189057).

Almost surely, 2^27546378113 is an apocalyptic number.

It is an amenable number.

27546378113 is a deficient number, since it is larger than the sum of its proper divisors (1).

27546378113 is an equidigital number, since it uses as much as digits as its factorization.

27546378113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The spelling of 27546378113 in words is "twenty-seven billion, five hundred forty-six million, three hundred seventy-eight thousand, one hundred thirteen".