27752549971 has 2 divisors, whose sum is σ = 27752549972. Its totient is φ = 27752549970.

The previous prime is 27752549959. The next prime is 27752550061. The reversal of 27752549971 is 17994525772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27752549971 - 2¹⁷ = 27752418899 is a prime.

It is not a weakly prime, because it can be changed into another prime (27752549911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876274985 + 13876274986.

It is an arithmetic number, because the mean of its divisors is an integer number (13876274986).

Almost surely, 2^27752549971 is an apocalyptic number.

27752549971 is a deficient number, since it is larger than the sum of its proper divisors (1).

27752549971 is an equidigital number, since it uses as much as digits as its factorization.

27752549971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11113200, while the sum is 58.

The spelling of 27752549971 in words is "twenty-seven billion, seven hundred fifty-two million, five hundred forty-nine thousand, nine hundred seventy-one".