27527683645 has 128 divisors (see below), whose sum is σ = 45028638720. Its totient is φ = 15634944000.

The previous prime is 27527683633. The next prime is 27527683663. The reversal of 27527683645 is 54638672572.

It is not a de Polignac number, because 27527683645 - 2²⁵ = 27494129213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52835985 + ... + 52836505.

It is an arithmetic number, because the mean of its divisors is an integer number (351786240).

Almost surely, 2^27527683645 is an apocalyptic number.

It is an amenable number.

27527683645 is a deficient number, since it is larger than the sum of its proper divisors (17500955075).

27527683645 is a wasteful number, since it uses less digits than its factorization.

27527683645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827.

The product of its digits is 16934400, while the sum is 55.

The spelling of 27527683645 in words is "twenty-seven billion, five hundred twenty-seven million, six hundred eighty-three thousand, six hundred forty-five".