27436252289 has 2 divisors, whose sum is σ = 27436252290. Its totient is φ = 27436252288.

The previous prime is 27436252279. The next prime is 27436252381. The reversal of 27436252289 is 98225263472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26688776689 + 747475600 = 163367^2 + 27340^2 .

It is a cyclic number.

It is not a de Polignac number, because 27436252289 - 2¹² = 27436248193 is a prime.

It is not a weakly prime, because it can be changed into another prime (27436252219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13718126144 + 13718126145.

It is an arithmetic number, because the mean of its divisors is an integer number (13718126145).

Almost surely, 2^27436252289 is an apocalyptic number.

It is an amenable number.

27436252289 is a deficient number, since it is larger than the sum of its proper divisors (1).

27436252289 is an equidigital number, since it uses as much as digits as its factorization.

27436252289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 27436252289 in words is "twenty-seven billion, four hundred thirty-six million, two hundred fifty-two thousand, two hundred eighty-nine".