84953854705 has 4 divisors (see below), whose sum is σ = 101944625652. Its totient is φ = 67963083760.

The previous prime is 84953854679. The next prime is 84953854721. The reversal of 84953854705 is 50745835948.

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 15213495649 + 69740359056 = 123343^2 + 264084^2 .

It is not a de Polignac number, because 84953854705 - 2³¹ = 82806371057 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84953854705.

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, 8495385466 + ... + 8495385475.

It is an arithmetic number, because the mean of its divisors is an integer number (25486156413).

Almost surely, 2^84953854705 is an apocalyptic number.

It is an amenable number.

84953854705 is a deficient number, since it is larger than the sum of its proper divisors (16990770947).

84953854705 is a wasteful number, since it uses less digits than its factorization.

84953854705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990770946.

The product of its (nonzero) digits is 24192000, while the sum is 58.

The spelling of 84953854705 in words is "eighty-four billion, nine hundred fifty-three million, eight hundred fifty-four thousand, seven hundred five".