84044117518 has 32 divisors (see below), whose sum is σ = 132888877056. Its totient is φ = 39785473728.

The previous prime is 84044117467. The next prime is 84044117537. The reversal of 84044117518 is 81571144048.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16262971 + ... + 16268137.

It is an arithmetic number, because the mean of its divisors is an integer number (4152777408).

Almost surely, 2^84044117518 is an apocalyptic number.

84044117518 is a deficient number, since it is larger than the sum of its proper divisors (48844759538).

84044117518 is a wasteful number, since it uses less digits than its factorization.

84044117518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 84044117518 in words is "eighty-four billion, forty-four million, one hundred seventeen thousand, five hundred eighteen".