27353326397 has 2 divisors, whose sum is σ = 27353326398. Its totient is φ = 27353326396.

The previous prime is 27353326393. The next prime is 27353326409. The reversal of 27353326397 is 79362335372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20711239396 + 6642087001 = 143914^2 + 81499^2 .

It is a cyclic number.

It is not a de Polignac number, because 27353326397 - 2² = 27353326393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27353326393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13676663198 + 13676663199.

It is an arithmetic number, because the mean of its divisors is an integer number (13676663199).

Almost surely, 2^27353326397 is an apocalyptic number.

It is an amenable number.

27353326397 is a deficient number, since it is larger than the sum of its proper divisors (1).

27353326397 is an equidigital number, since it uses as much as digits as its factorization.

27353326397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 50.

The spelling of 27353326397 in words is "twenty-seven billion, three hundred fifty-three million, three hundred twenty-six thousand, three hundred ninety-seven".