27465645473 has 12 divisors (see below), whose sum is σ = 31962008772. Its totient is φ = 23533009920.

The previous prime is 27465645443. The next prime is 27465645479. The reversal of 27465645473 is 37454656472.

It can be written as a sum of positive squares in 2 ways, for example, as 22574461504 + 4891183969 = 150248^2 + 69937^2 .

It is not a de Polignac number, because 27465645473 - 2¹⁰ = 27465644449 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27465645479) 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 11 ways as a sum of consecutive naturals, for example, 24713 + ... + 235673.

It is an arithmetic number, because the mean of its divisors is an integer number (2663500731).

Almost surely, 2^27465645473 is an apocalyptic number.

It is an amenable number.

27465645473 is a deficient number, since it is larger than the sum of its proper divisors (4496363299).

27465645473 is a wasteful number, since it uses less digits than its factorization.

27465645473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213632 (or 213625 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 53.

The spelling of 27465645473 in words is "twenty-seven billion, four hundred sixty-five million, six hundred forty-five thousand, four hundred seventy-three".