84435863243 has 4 divisors (see below), whose sum is σ = 84497005728. Its totient is φ = 84374720760.

The previous prime is 84435863227. The next prime is 84435863299. The reversal of 84435863243 is 34236853448.

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 84435863243 - 2⁴ = 84435863227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84435863191 and 84435863200.

It is not an unprimeable number, because it can be changed into a prime (84435863203) 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 3 ways as a sum of consecutive naturals, for example, 30569171 + ... + 30571932.

It is an arithmetic number, because the mean of its divisors is an integer number (21124251432).

Almost surely, 2^84435863243 is an apocalyptic number.

84435863243 is a deficient number, since it is larger than the sum of its proper divisors (61142485).

84435863243 is a wasteful number, since it uses less digits than its factorization.

84435863243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61142484.

The product of its digits is 6635520, while the sum is 50.

The spelling of 84435863243 in words is "eighty-four billion, four hundred thirty-five million, eight hundred sixty-three thousand, two hundred forty-three".