27634691353 has 2 divisors, whose sum is σ = 27634691354. Its totient is φ = 27634691352.

The previous prime is 27634691333. The next prime is 27634691389. The reversal of 27634691353 is 35319643672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27171236569 + 463454784 = 164837^2 + 21528^2 .

It is a cyclic number.

It is not a de Polignac number, because 27634691353 - 2¹⁷ = 27634560281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27634691297 and 27634691306.

It is not a weakly prime, because it can be changed into another prime (27634691333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13817345676 + 13817345677.

It is an arithmetic number, because the mean of its divisors is an integer number (13817345677).

Almost surely, 2^27634691353 is an apocalyptic number.

It is an amenable number.

27634691353 is a deficient number, since it is larger than the sum of its proper divisors (1).

27634691353 is an equidigital number, since it uses as much as digits as its factorization.

27634691353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 49.

The spelling of 27634691353 in words is "twenty-seven billion, six hundred thirty-four million, six hundred ninety-one thousand, three hundred fifty-three".