27357275489 has 2 divisors, whose sum is σ = 27357275490. Its totient is φ = 27357275488.

The previous prime is 27357275453. The next prime is 27357275509. The reversal of 27357275489 is 98457275372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21778380625 + 5578894864 = 147575^2 + 74692^2 .

It is a cyclic number.

It is not a de Polignac number, because 27357275489 - 2¹² = 27357271393 is a prime.

It is not a weakly prime, because it can be changed into another prime (27357275389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13678637744 + 13678637745.

It is an arithmetic number, because the mean of its divisors is an integer number (13678637745).

Almost surely, 2^27357275489 is an apocalyptic number.

It is an amenable number.

27357275489 is a deficient number, since it is larger than the sum of its proper divisors (1).

27357275489 is an equidigital number, since it uses as much as digits as its factorization.

27357275489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29635200, while the sum is 59.

The spelling of 27357275489 in words is "twenty-seven billion, three hundred fifty-seven million, two hundred seventy-five thousand, four hundred eighty-nine".