8212633641 has 12 divisors (see below), whose sum is σ = 11914498180. Its totient is φ = 5451179040.

The previous prime is 8212633633. The next prime is 8212633643. The reversal of 8212633641 is 1463362128.

8212633641 is a `hidden beast` number, since 8 + 2 + 1 + 2 + 6 + 3 + 3 + 641 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3459910041 + 4752723600 = 58821^2 + 68940^2 .

It is not a de Polignac number, because 8212633641 - 2³ = 8212633633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8212633596 and 8212633605.

It is not an unprimeable number, because it can be changed into a prime (8212633643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1990330 + ... + 1994451.

Almost surely, 2^8212633641 is an apocalyptic number.

It is an amenable number.

8212633641 is a deficient number, since it is larger than the sum of its proper divisors (3701864539).

8212633641 is a wasteful number, since it uses less digits than its factorization.

8212633641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985016 (or 3985013 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 8212633641 is about 90623.5821461500. The cubic root of 8212633641 is about 2017.5647581283.

Adding to 8212633641 its reverse (1463362128), we get a palindrome (9675995769).

The spelling of 8212633641 in words is "eight billion, two hundred twelve million, six hundred thirty-three thousand, six hundred forty-one".