84871793165 has 8 divisors (see below), whose sum is σ = 101942148888. Its totient is φ = 67833436480.

The previous prime is 84871793161. The next prime is 84871793173. The reversal of 84871793165 is 56139717848.

It can be written as a sum of positive squares in 4 ways, for example, as 35282738569 + 49589054596 = 187837^2 + 222686^2 .

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

It is not a de Polignac number, because 84871793165 - 2² = 84871793161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871793161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7993922 + ... + 8004531.

It is an arithmetic number, because the mean of its divisors is an integer number (12742768611).

Almost surely, 2^84871793165 is an apocalyptic number.

It is an amenable number.

84871793165 is a deficient number, since it is larger than the sum of its proper divisors (17070355723).

84871793165 is a wasteful number, since it uses less digits than its factorization.

84871793165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15999519.

The product of its digits is 10160640, while the sum is 59.

The spelling of 84871793165 in words is "eighty-four billion, eight hundred seventy-one million, seven hundred ninety-three thousand, one hundred sixty-five".