84243686011 has 4 divisors (see below), whose sum is σ = 87906454992. Its totient is φ = 80580917032.

The previous prime is 84243685979. The next prime is 84243686089. The reversal of 84243686011 is 11068634248.

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 84243686011 - 2⁵ = 84243685979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84243680011) 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 in 3 ways as a sum of consecutive naturals, for example, 1831384456 + ... + 1831384501.

It is an arithmetic number, because the mean of its divisors is an integer number (21976613748).

Almost surely, 2^84243686011 is an apocalyptic number.

84243686011 is a deficient number, since it is larger than the sum of its proper divisors (3662768981).

84243686011 is a wasteful number, since it uses less digits than its factorization.

84243686011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662768980.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 84243686011 in words is "eighty-four billion, two hundred forty-three million, six hundred eighty-six thousand, eleven".