27018568769 has 8 divisors (see below), whose sum is σ = 27209997888. Its totient is φ = 26827304400.

The previous prime is 27018568751. The next prime is 27018568771. The reversal of 27018568769 is 96786581072.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27018568769 is a prime.

It is a super-2 number, since 2×27018568769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27018568729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297794 + ... + 377780.

It is an arithmetic number, because the mean of its divisors is an integer number (3401249736).

Almost surely, 2^27018568769 is an apocalyptic number.

It is an amenable number.

27018568769 is a deficient number, since it is larger than the sum of its proper divisors (191429119).

27018568769 is a wasteful number, since it uses less digits than its factorization.

27018568769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82375.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 27018568769 in words is "twenty-seven billion, eighteen million, five hundred sixty-eight thousand, seven hundred sixty-nine".