1822147712 has 168 divisors, whose sum is σ = 4655071155. Its totient is φ = 709927680.

The previous prime is 1822147687. The next prime is 1822147741. The reversal of 1822147712 is 2177412281.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 911073856 + 911073856 = 30184^2 + 30184^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30184.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 165649787 + ... + 165649797.

Almost surely, 2^1822147712 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 1822147712

1822147712 is an abundant number, since it is smaller than the sum of its proper divisors (2832923443).

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

1822147712 is an frugal number, since it uses more digits than its factorization.

1822147712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 20 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 1822147712 is about 42686.6221666695. The cubic root of 1822147712 is about 1221.4092181365.

Adding to 1822147712 its reverse (2177412281), we get a palindrome (3999559993).

The spelling of 1822147712 in words is "one billion, eight hundred twenty-two million, one hundred forty-seven thousand, seven hundred twelve".