27773527541 has 2 divisors, whose sum is σ = 27773527542. Its totient is φ = 27773527540.

The previous prime is 27773527519. The next prime is 27773527543. The reversal of 27773527541 is 14572537772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26066102500 + 1707425041 = 161450^2 + 41321^2 .

It is a cyclic number.

It is not a de Polignac number, because 27773527541 - 2²² = 27769333237 is a prime.

Together with 27773527543, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27773527541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27773527543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13886763770 + 13886763771.

It is an arithmetic number, because the mean of its divisors is an integer number (13886763771).

Almost surely, 2^27773527541 is an apocalyptic number.

It is an amenable number.

27773527541 is a deficient number, since it is larger than the sum of its proper divisors (1).

27773527541 is an equidigital number, since it uses as much as digits as its factorization.

27773527541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2881200, while the sum is 50.

The spelling of 27773527541 in words is "twenty-seven billion, seven hundred seventy-three million, five hundred twenty-seven thousand, five hundred forty-one".