28027561311594 has 96 divisors (see below), whose sum is σ = 66103041199104. Its totient is φ = 8531075548800.

The previous prime is 28027561311593. The next prime is 28027561311613. The reversal of 28027561311594 is 49511316572082.

28027561311594 is a `hidden beast` number, since 2 + 8 + 0 + 2 + 7 + 5 + 613 + 1 + 15 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28027561311594.

It is not an unprimeable number, because it can be changed into a prime (28027561311593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16753207 + ... + 18350069.

It is an arithmetic number, because the mean of its divisors is an integer number (688573345824).

It is a 1-persistent number, because it is pandigital, but 2⋅28027561311594 = 56055122623188 is not.

Almost surely, 2^{28027561311594} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28027561311594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33051520599552).

28027561311594 is an abundant number, since it is smaller than the sum of its proper divisors (38075479887510).

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

28027561311594 is a wasteful number, since it uses less digits than its factorization.

28027561311594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597692 (or 1597689 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 28027561311594 in words is "twenty-eight trillion, twenty-seven billion, five hundred sixty-one million, three hundred eleven thousand, five hundred ninety-four".