83773027685 has 4 divisors (see below), whose sum is σ = 100527633228. Its totient is φ = 67018422144.

The previous prime is 83773027607. The next prime is 83773027759. The reversal of 83773027685 is 58672037738.

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 11242997089 + 72530030596 = 106033^2 + 269314^2 .

It is a cyclic number.

It is not a de Polignac number, because 83773027685 - 2³⁰ = 82699285861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83773027685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8377302764 + ... + 8377302773.

It is an arithmetic number, because the mean of its divisors is an integer number (25131908307).

Almost surely, 2^83773027685 is an apocalyptic number.

It is an amenable number.

83773027685 is a deficient number, since it is larger than the sum of its proper divisors (16754605543).

83773027685 is a wasteful number, since it uses less digits than its factorization.

83773027685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16754605542.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 83773027685 in words is "eighty-three billion, seven hundred seventy-three million, twenty-seven thousand, six hundred eighty-five".