281108328612 has 96 divisors (see below), whose sum is σ = 731113350912. Its totient is φ = 83609788416.

The previous prime is 281108328581. The next prime is 281108328619. The reversal of 281108328612 is 216823801182.

It is not an unprimeable number, because it can be changed into a prime (281108328619) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 265098 + ... + 795294.

It is an arithmetic number, because the mean of its divisors is an integer number (7615764072).

Almost surely, 2^281108328612 is an apocalyptic number.

It is a pronic number, being equal to 530196×530197.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281108328612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365556675456).

281108328612 is an abundant number, since it is smaller than the sum of its proper divisors (450005022300).

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

281108328612 is a wasteful number, since it uses less digits than its factorization.

281108328612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530357 (or 530355 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The spelling of 281108328612 in words is "two hundred eighty-one billion, one hundred eight million, three hundred twenty-eight thousand, six hundred twelve".