27672535549 has 2 divisors, whose sum is σ = 27672535550. Its totient is φ = 27672535548.

The previous prime is 27672535507. The next prime is 27672535651. The reversal of 27672535549 is 94553527672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27557660025 + 114875524 = 166005^2 + 10718^2 .

It is a cyclic number.

It is not a de Polignac number, because 27672535549 - 2⁷ = 27672535421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27672535549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27672535049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13836267774 + 13836267775.

It is an arithmetic number, because the mean of its divisors is an integer number (13836267775).

Almost surely, 2^27672535549 is an apocalyptic number.

It is an amenable number.

27672535549 is a deficient number, since it is larger than the sum of its proper divisors (1).

27672535549 is an equidigital number, since it uses as much as digits as its factorization.

27672535549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876000, while the sum is 55.

The spelling of 27672535549 in words is "twenty-seven billion, six hundred seventy-two million, five hundred thirty-five thousand, five hundred forty-nine".