84718571444 has 24 divisors (see below), whose sum is σ = 159769440768. Its totient is φ = 39074548320.

The previous prime is 84718571411. The next prime is 84718571453. The reversal of 84718571444 is 44417581748.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 470492 + ... + 625139.

It is an arithmetic number, because the mean of its divisors is an integer number (6657060032).

Almost surely, 2^84718571444 is an apocalyptic number.

It is an amenable number.

84718571444 is a deficient number, since it is larger than the sum of its proper divisors (75050869324).

84718571444 is a wasteful number, since it uses less digits than its factorization.

84718571444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097135 (or 1097133 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 53.

The spelling of 84718571444 in words is "eighty-four billion, seven hundred eighteen million, five hundred seventy-one thousand, four hundred forty-four".