27854927328 has 144 divisors (see below), whose sum is σ = 75034103760. Its totient is φ = 9047199744.

The previous prime is 27854927299. The next prime is 27854927339. The reversal of 27854927328 is 82372945872.

It is a super-2 number, since 2×27854927328² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46972600 + ... + 46973192.

It is an arithmetic number, because the mean of its divisors is an integer number (521070165).

Almost surely, 2^27854927328 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 27854927328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37517051880).

27854927328 is an abundant number, since it is smaller than the sum of its proper divisors (47179176432).

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

27854927328 is a wasteful number, since it uses less digits than its factorization.

27854927328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 774 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 27854927328 in words is "twenty-seven billion, eight hundred fifty-four million, nine hundred twenty-seven thousand, three hundred twenty-eight".