84171702005 has 8 divisors (see below), whose sum is σ = 103735935672. Its totient is φ = 65517432768.

The previous prime is 84171701993. The next prime is 84171702053. The reversal of 84171702005 is 50020717148.

It can be written as a sum of positive squares in 4 ways, for example, as 34266822769 + 49904879236 = 185113^2 + 223394^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84171702005 - 2¹⁴ = 84171685621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227490902 + ... + 227491271.

It is an arithmetic number, because the mean of its divisors is an integer number (12966991959).

Almost surely, 2^84171702005 is an apocalyptic number.

It is an amenable number.

84171702005 is a deficient number, since it is larger than the sum of its proper divisors (19564233667).

84171702005 is a wasteful number, since it uses less digits than its factorization.

84171702005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454982215.

The product of its (nonzero) digits is 15680, while the sum is 35.

The spelling of 84171702005 in words is "eighty-four billion, one hundred seventy-one million, seven hundred two thousand, five".