83936710243205 has 16 divisors (see below), whose sum is σ = 100765171085040. Its totient is φ = 67121958079488.

The previous prime is 83936710243153. The next prime is 83936710243279. The reversal of 83936710243205 is 50234201763938.

It is a Cunningham number, because it is equal to 9161698²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 12038039524 + 83924672203681 = 109718^2 + 9161041^2 .

It is a cyclic number.

It is not a de Polignac number, because 83936710243205 - 2⁸ = 83936710242949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302649179 + ... + 302926391.

It is an arithmetic number, because the mean of its divisors is an integer number (6297823192815).

It is a 1-persistent number, because it is pandigital, but 2⋅83936710243205 = 167873420486410 is not.

Almost surely, 2^{83936710243205} is an apocalyptic number.

It is an amenable number.

83936710243205 is a deficient number, since it is larger than the sum of its proper divisors (16828460841835).

83936710243205 is a wasteful number, since it uses less digits than its factorization.

83936710243205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301720.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 83936710243205 in words is "eighty-three trillion, nine hundred thirty-six billion, seven hundred ten million, two hundred forty-three thousand, two hundred five".