27419054569 has 3 divisors (see below), whose sum is σ = 27419220157. Its totient is φ = 27418888982.

The previous prime is 27419054513. The next prime is 27419054581. The reversal of 27419054569 is 96545091472.

The square root of 27419054569 is 165587.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 27419054569 - 2⁹ = 27419054057 is a prime.

It is a super-2 number, since 2×27419054569² (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 (27419054969) 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 2 ways as a sum of consecutive naturals, for example, 82794 + ... + 248380.

Almost surely, 2^27419054569 is an apocalyptic number.

27419054569 is the 165587-th square number.

27419054569 is the 82794-th centered octagonal number.

It is an amenable number.

27419054569 is a deficient number, since it is larger than the sum of its proper divisors (165588).

27419054569 is an frugal number, since it uses more digits than its factorization.

27419054569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331174 (or 165587 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 27419054569 in words is "twenty-seven billion, four hundred nineteen million, fifty-four thousand, five hundred sixty-nine".