27750576547 has 2 divisors, whose sum is σ = 27750576548. Its totient is φ = 27750576546.

The previous prime is 27750576517. The next prime is 27750576551. The reversal of 27750576547 is 74567505772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27750576547 is a prime.

It is not a weakly prime, because it can be changed into another prime (27750576517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875288273 + 13875288274.

It is an arithmetic number, because the mean of its divisors is an integer number (13875288274).

Almost surely, 2^27750576547 is an apocalyptic number.

27750576547 is a deficient number, since it is larger than the sum of its proper divisors (1).

27750576547 is an equidigital number, since it uses as much as digits as its factorization.

27750576547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14406000, while the sum is 55.

The spelling of 27750576547 in words is "twenty-seven billion, seven hundred fifty million, five hundred seventy-six thousand, five hundred forty-seven".