27066745238 has 16 divisors (see below), whose sum is σ = 44789625216. Its totient is φ = 12187652160.

The previous prime is 27066745229. The next prime is 27066745243. The reversal of 27066745238 is 83254766072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12694406 + ... + 12696537.

It is an arithmetic number, because the mean of its divisors is an integer number (2799351576).

Almost surely, 2^27066745238 is an apocalyptic number.

27066745238 is a deficient number, since it is larger than the sum of its proper divisors (17722879978).

27066745238 is a wasteful number, since it uses less digits than its factorization.

27066745238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25390999.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 27066745238 in words is "twenty-seven billion, sixty-six million, seven hundred forty-five thousand, two hundred thirty-eight".