27353336489 has 2 divisors, whose sum is σ = 27353336490. Its totient is φ = 27353336488.

The previous prime is 27353336449. The next prime is 27353336519. The reversal of 27353336489 is 98463335372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26323440025 + 1029896464 = 162245^2 + 32092^2 .

It is a cyclic number.

It is not a de Polignac number, because 27353336489 - 2⁸ = 27353336233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27353336489.

It is not a weakly prime, because it can be changed into another prime (27353336449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13676668244 + 13676668245.

It is an arithmetic number, because the mean of its divisors is an integer number (13676668245).

Almost surely, 2^27353336489 is an apocalyptic number.

It is an amenable number.

27353336489 is a deficient number, since it is larger than the sum of its proper divisors (1).

27353336489 is an equidigital number, since it uses as much as digits as its factorization.

27353336489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 53.

The spelling of 27353336489 in words is "twenty-seven billion, three hundred fifty-three million, three hundred thirty-six thousand, four hundred eighty-nine".