27845392011 has 4 divisors (see below), whose sum is σ = 37127189352. Its totient is φ = 18563594672.

The previous prime is 27845391989. The next prime is 27845392027. The reversal of 27845392011 is 11029354872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27845392011 - 2⁶ = 27845391947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27845392511) 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 in 3 ways as a sum of consecutive naturals, for example, 4640898666 + ... + 4640898671.

It is an arithmetic number, because the mean of its divisors is an integer number (9281797338).

Almost surely, 2^27845392011 is an apocalyptic number.

27845392011 is a deficient number, since it is larger than the sum of its proper divisors (9281797341).

27845392011 is an equidigital number, since it uses as much as digits as its factorization.

27845392011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281797340.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 27845392011 in words is "twenty-seven billion, eight hundred forty-five million, three hundred ninety-two thousand, eleven".