84344516854 has 16 divisors (see below), whose sum is σ = 137116668528. Its totient is φ = 38680286112.

The previous prime is 84344516833. The next prime is 84344516857. The reversal of 84344516854 is 45861544348.

It is a super-2 number, since 2×84344516854² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84344516857) 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 7 ways as a sum of consecutive naturals, for example, 10327192 + ... + 10335355.

It is an arithmetic number, because the mean of its divisors is an integer number (8569791783).

Almost surely, 2^84344516854 is an apocalyptic number.

84344516854 is a deficient number, since it is larger than the sum of its proper divisors (52772151674).

84344516854 is a wasteful number, since it uses less digits than its factorization.

84344516854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20662719.

The product of its digits is 7372800, while the sum is 52.

The spelling of 84344516854 in words is "eighty-four billion, three hundred forty-four million, five hundred sixteen thousand, eight hundred fifty-four".