27189370045284 has 192 divisors, whose sum is σ = 67923323629056. Its totient is φ = 8446641831936.

The previous prime is 27189370045259. The next prime is 27189370045289. The reversal of 27189370045284 is 48254007398172.

It is not an unprimeable number, because it can be changed into a prime (27189370045289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1088563804 + ... + 1088588780.

It is an arithmetic number, because the mean of its divisors is an integer number (353767310568).

Almost surely, 2^{27189370045284} 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 27189370045284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33961661814528).

27189370045284 is an abundant number, since it is smaller than the sum of its proper divisors (40733953583772).

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

27189370045284 is a wasteful number, since it uses less digits than its factorization.

27189370045284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25734 (or 25732 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 27189370045284 in words is "twenty-seven trillion, one hundred eighty-nine billion, three hundred seventy million, forty-five thousand, two hundred eighty-four".