27112017489 has 4 divisors (see below), whose sum is σ = 36149356656. Its totient is φ = 18074678324.

The previous prime is 27112017481. The next prime is 27112017509. The reversal of 27112017489 is 98471021172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27112017489 - 2³ = 27112017481 is a prime.

It is a super-2 number, since 2×27112017489² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27112017489.

It is not an unprimeable number, because it can be changed into a prime (27112017481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4518669579 + ... + 4518669584.

It is an arithmetic number, because the mean of its divisors is an integer number (9037339164).

Almost surely, 2^27112017489 is an apocalyptic number.

It is an amenable number.

27112017489 is a deficient number, since it is larger than the sum of its proper divisors (9037339167).

27112017489 is an equidigital number, since it uses as much as digits as its factorization.

27112017489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037339166.

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 27112017489 in words is "twenty-seven billion, one hundred twelve million, seventeen thousand, four hundred eighty-nine".