27422486561 has 2 divisors, whose sum is σ = 27422486562. Its totient is φ = 27422486560.

The previous prime is 27422486411. The next prime is 27422486563. The reversal of 27422486561 is 16568422472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17257814161 + 10164672400 = 131369^2 + 100820^2 .

It is a cyclic number.

It is not a de Polignac number, because 27422486561 - 2³⁴ = 10242617377 is a prime.

Together with 27422486563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27422486563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13711243280 + 13711243281.

It is an arithmetic number, because the mean of its divisors is an integer number (13711243281).

Almost surely, 2^27422486561 is an apocalyptic number.

It is an amenable number.

27422486561 is a deficient number, since it is larger than the sum of its proper divisors (1).

27422486561 is an equidigital number, since it uses as much as digits as its factorization.

27422486561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The spelling of 27422486561 in words is "twenty-seven billion, four hundred twenty-two million, four hundred eighty-six thousand, five hundred sixty-one".