4239654489859 has 4 divisors (see below), whose sum is σ = 4278550402720. Its totient is φ = 4200758577000.

The previous prime is 4239654489839. The next prime is 4239654489893. The reversal of 4239654489859 is 9589844569324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4239654489859 - 2⁷ = 4239654489731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4239654489839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19447956267 + ... + 19447956484.

It is an arithmetic number, because the mean of its divisors is an integer number (1069637600680).

Almost surely, 2^{4239654489859} is an apocalyptic number.

4239654489859 is a deficient number, since it is larger than the sum of its proper divisors (38895912861).

4239654489859 is a wasteful number, since it uses less digits than its factorization.

4239654489859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38895912860.

The product of its digits is 2687385600, while the sum is 76.

The spelling of 4239654489859 in words is "four trillion, two hundred thirty-nine billion, six hundred fifty-four million, four hundred eighty-nine thousand, eight hundred fifty-nine".