84234727105 has 4 divisors (see below), whose sum is σ = 101081672532. Its totient is φ = 67387781680.

The previous prime is 84234727043. The next prime is 84234727117. The reversal of 84234727105 is 50172743248.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65108666896 + 19126060209 = 255164^2 + 138297^2 .

It is not a de Polignac number, because 84234727105 - 2¹⁵ = 84234694337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423472706 + ... + 8423472715.

It is an arithmetic number, because the mean of its divisors is an integer number (25270418133).

Almost surely, 2^84234727105 is an apocalyptic number.

It is an amenable number.

84234727105 is a deficient number, since it is larger than the sum of its proper divisors (16846945427).

84234727105 is a wasteful number, since it uses less digits than its factorization.

84234727105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16846945426.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 84234727105 in words is "eighty-four billion, two hundred thirty-four million, seven hundred twenty-seven thousand, one hundred five".