27013405804 has 72 divisors (see below), whose sum is σ = 60305817600. Its totient is φ = 10469440800.

The previous prime is 27013405801. The next prime is 27013405891. The reversal of 27013405804 is 40850431072.

It is a self number, because there is not a number n which added to its sum of digits gives 27013405804.

It is not an unprimeable number, because it can be changed into a prime (27013405801) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 378997 + ... + 444595.

It is an arithmetic number, because the mean of its divisors is an integer number (837580800).

Almost surely, 2^27013405804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27013405804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30152908800).

27013405804 is an abundant number, since it is smaller than the sum of its proper divisors (33292411796).

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

27013405804 is a wasteful number, since it uses less digits than its factorization.

27013405804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65819 (or 65810 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 27013405804 its reverse (40850431072), we get a palindrome (67863836876).

The spelling of 27013405804 in words is "twenty-seven billion, thirteen million, four hundred five thousand, eight hundred four".