27853305804 has 18 divisors (see below), whose sum is σ = 70406967540. Its totient is φ = 9284435256.

The previous prime is 27853305793. The next prime is 27853305817. The reversal of 27853305804 is 40850335872.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×27853305804² (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 27853305804.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386851434 + ... + 386851505.

Almost surely, 2^27853305804 is an apocalyptic number.

It is an amenable number.

27853305804 is an abundant number, since it is smaller than the sum of its proper divisors (42553661736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27853305804 is a wasteful number, since it uses less digits than its factorization.

27853305804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773702949 (or 773702944 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 27853305804 in words is "twenty-seven billion, eight hundred fifty-three million, three hundred five thousand, eight hundred four".