4618239643 has 8 divisors (see below), whose sum is σ = 4640321088. Its totient is φ = 4596177984.

The previous prime is 4618239581. The next prime is 4618239683. The reversal of 4618239643 is 3469328164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4618239643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4618239593 and 4618239602.

It is not an unprimeable number, because it can be changed into a prime (4618239683) 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 7 ways as a sum of consecutive naturals, for example, 685630 + ... + 692332.

It is an arithmetic number, because the mean of its divisors is an integer number (580040136).

Almost surely, 2^4618239643 is an apocalyptic number.

4618239643 is a deficient number, since it is larger than the sum of its proper divisors (22081445).

4618239643 is a wasteful number, since it uses less digits than its factorization.

4618239643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9893.

The product of its digits is 746496, while the sum is 46.

The square root of 4618239643 is about 67957.6312344684. The cubic root of 4618239643 is about 1665.2987458539.

The spelling of 4618239643 in words is "four billion, six hundred eighteen million, two hundred thirty-nine thousand, six hundred forty-three".