27888512279712 has 384 divisors, whose sum is σ = 91822314479616. Its totient is φ = 7230309875712.

The previous prime is 27888512279711. The next prime is 27888512279723. The reversal of 27888512279712 is 21797221588872.

It is not an unprimeable number, because it can be changed into a prime (27888512279711) 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, 35586558 + ... + 36361794.

It is an arithmetic number, because the mean of its divisors is an integer number (239120610624).

Almost surely, 2^{27888512279712} 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 27888512279712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45911157239808).

27888512279712 is an abundant number, since it is smaller than the sum of its proper divisors (63933802199904).

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

27888512279712 is a wasteful number, since it uses less digits than its factorization.

27888512279712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775388 (or 775380 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 69.

The spelling of 27888512279712 in words is "twenty-seven trillion, eight hundred eighty-eight billion, five hundred twelve million, two hundred seventy-nine thousand, seven hundred twelve".