8442648623 has 2 divisors, whose sum is σ = 8442648624. Its totient is φ = 8442648622.

The previous prime is 8442648611. The next prime is 8442648631. The reversal of 8442648623 is 3268462448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8442648623 - 2⁶ = 8442648559 is a prime.

It is a super-3 number, since 3×8442648623³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8442648673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221324311 + 4221324312.

It is an arithmetic number, because the mean of its divisors is an integer number (4221324312).

Almost surely, 2^8442648623 is an apocalyptic number.

8442648623 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442648623 is an equidigital number, since it uses as much as digits as its factorization.

8442648623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1769472, while the sum is 47.

The square root of 8442648623 is about 91883.8866341645. The cubic root of 8442648623 is about 2036.2272175212.

The spelling of 8442648623 in words is "eight billion, four hundred forty-two million, six hundred forty-eight thousand, six hundred twenty-three".