8641242243 has 10 divisors (see below), whose sum is σ = 12908522484. Its totient is φ = 5760828108.

The previous prime is 8641242229. The next prime is 8641242251. The reversal of 8641242243 is 3422421468.

8641242243 is a `hidden beast` number, since 8 + 641 + 2 + 4 + 2 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 8641242243 - 2⁹ = 8641241731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8641242198 and 8641242207.

It is not an unprimeable number, because it can be changed into a prime (8641202243) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 53340921 + ... + 53341082.

Almost surely, 2^8641242243 is an apocalyptic number.

8641242243 is a deficient number, since it is larger than the sum of its proper divisors (4267280241).

8641242243 is a wasteful number, since it uses less digits than its factorization.

8641242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106682015 (or 106682006 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 8641242243 is about 92958.2822722107. The cubic root of 8641242243 is about 2052.0694741534.

The spelling of 8641242243 in words is "eight billion, six hundred forty-one million, two hundred forty-two thousand, two hundred forty-three".