27673523453 has 2 divisors, whose sum is σ = 27673523454. Its totient is φ = 27673523452.

The previous prime is 27673523443. The next prime is 27673523477. The reversal of 27673523453 is 35432537672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18511779364 + 9161744089 = 136058^2 + 95717^2 .

It is a cyclic number.

It is not a de Polignac number, because 27673523453 - 2⁸ = 27673523197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27673523398 and 27673523407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27673523443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13836761726 + 13836761727.

It is an arithmetic number, because the mean of its divisors is an integer number (13836761727).

Almost surely, 2^27673523453 is an apocalyptic number.

It is an amenable number.

27673523453 is a deficient number, since it is larger than the sum of its proper divisors (1).

27673523453 is an equidigital number, since it uses as much as digits as its factorization.

27673523453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 47.

The spelling of 27673523453 in words is "twenty-seven billion, six hundred seventy-three million, five hundred twenty-three thousand, four hundred fifty-three".