83771984086559 has 16 divisors (see below), whose sum is σ = 84337429508640. Its totient is φ = 83208944607360.

The previous prime is 83771984086519. The next prime is 83771984086597. The reversal of 83771984086559 is 95568048917738.

It is a cyclic number.

It is not a de Polignac number, because 83771984086559 - 2¹⁶ = 83771984021023 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 (83771984086519) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 103206872 + ... + 104015394.

It is an arithmetic number, because the mean of its divisors is an integer number (5271089344290).

Almost surely, 2^{83771984086559} is an apocalyptic number.

83771984086559 is a deficient number, since it is larger than the sum of its proper divisors (565445422081).

83771984086559 is a wasteful number, since it uses less digits than its factorization.

83771984086559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810010.

The product of its (nonzero) digits is 3657830400, while the sum is 80.

The spelling of 83771984086559 in words is "eighty-three trillion, seven hundred seventy-one billion, nine hundred eighty-four million, eighty-six thousand, five hundred fifty-nine".