27066745771 has 24 divisors (see below), whose sum is σ = 30361852080. Its totient is φ = 24100876800.

The previous prime is 27066745763. The next prime is 27066745781. The reversal of 27066745771 is 17754766072.

It is not a de Polignac number, because 27066745771 - 2³ = 27066745763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27066745751) 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 in 23 ways as a sum of consecutive naturals, for example, 594736 + ... + 638626.

It is an arithmetic number, because the mean of its divisors is an integer number (1265077170).

Almost surely, 2^27066745771 is an apocalyptic number.

27066745771 is a deficient number, since it is larger than the sum of its proper divisors (3295106309).

27066745771 is a wasteful number, since it uses less digits than its factorization.

27066745771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44047 (or 44034 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 27066745771 in words is "twenty-seven billion, sixty-six million, seven hundred forty-five thousand, seven hundred seventy-one".