27442012111 has 32 divisors (see below), whose sum is σ = 29081898560. Its totient is φ = 25866086400.

The previous prime is 27442012099. The next prime is 27442012159. The reversal of 27442012111 is 11121024472.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27442012111 - 2⁹ = 27442011599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27442012711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81430135 + ... + 81430471.

It is an arithmetic number, because the mean of its divisors is an integer number (908809330).

Almost surely, 2^27442012111 is an apocalyptic number.

27442012111 is a deficient number, since it is larger than the sum of its proper divisors (1639886449).

27442012111 is a wasteful number, since it uses less digits than its factorization.

27442012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 27442012111 its reverse (11121024472), we get a palindrome (38563036583).

The spelling of 27442012111 in words is "twenty-seven billion, four hundred forty-two million, twelve thousand, one hundred eleven".