27051317169 has 4 divisors (see below), whose sum is σ = 36068422896. Its totient is φ = 18034211444.

The previous prime is 27051317113. The next prime is 27051317177. The reversal of 27051317169 is 96171315072.

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 27051317169 - 2⁸ = 27051316913 is a prime.

It is a super-2 number, since 2×27051317169² (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 27051317169.

It is not an unprimeable number, because it can be changed into a prime (27051367169) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4508552859 + ... + 4508552864.

It is an arithmetic number, because the mean of its divisors is an integer number (9017105724).

Almost surely, 2^27051317169 is an apocalyptic number.

It is an amenable number.

27051317169 is a deficient number, since it is larger than the sum of its proper divisors (9017105727).

27051317169 is an equidigital number, since it uses as much as digits as its factorization.

27051317169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017105726.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 27051317169 in words is "twenty-seven billion, fifty-one million, three hundred seventeen thousand, one hundred sixty-nine".