27089510389 has 2 divisors, whose sum is σ = 27089510390. Its totient is φ = 27089510388.

The previous prime is 27089510341. The next prime is 27089510411. The reversal of 27089510389 is 98301598072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23842448100 + 3247062289 = 154410^2 + 56983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27089510389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27089510989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13544755194 + 13544755195.

It is an arithmetic number, because the mean of its divisors is an integer number (13544755195).

Almost surely, 2^27089510389 is an apocalyptic number.

It is an amenable number.

27089510389 is a deficient number, since it is larger than the sum of its proper divisors (1).

27089510389 is an equidigital number, since it uses as much as digits as its factorization.

27089510389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 27089510389 in words is "twenty-seven billion, eighty-nine million, five hundred ten thousand, three hundred eighty-nine".