84120427206 has 32 divisors (see below), whose sum is σ = 186948986880. Its totient is φ = 28037936808.

The previous prime is 84120427201. The next prime is 84120427253. The reversal of 84120427206 is 60272402148.

84120427206 is a `hidden beast` number, since 8 + 4 + 1 + 20 + 427 + 206 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84120427201) 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 15 ways as a sum of consecutive naturals, for example, 723915 + ... + 832041.

It is an arithmetic number, because the mean of its divisors is an integer number (5842155840).

Almost surely, 2^84120427206 is an apocalyptic number.

84120427206 is an abundant number, since it is smaller than the sum of its proper divisors (102828559674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84120427206 is a wasteful number, since it uses less digits than its factorization.

84120427206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122545 (or 122539 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 84120427206 in words is "eighty-four billion, one hundred twenty million, four hundred twenty-seven thousand, two hundred six".