27651315712 has 48 divisors (see below), whose sum is σ = 56226479400. Its totient is φ = 13591265280.

The previous prime is 27651315707. The next prime is 27651315739. The reversal of 27651315712 is 21751315672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6412 + ... + 235252.

Almost surely, 2^27651315712 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 27651315712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28113239700).

27651315712 is an abundant number, since it is smaller than the sum of its proper divisors (28575163688).

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

27651315712 is an equidigital number, since it uses as much as digits as its factorization.

27651315712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228922 (or 228902 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

Subtracting from 27651315712 its sum of digits (40), we obtain a palindrome (27651315672).

The spelling of 27651315712 in words is "twenty-seven billion, six hundred fifty-one million, three hundred fifteen thousand, seven hundred twelve".