83920223317 has 4 divisors (see below), whose sum is σ = 95908826656. Its totient is φ = 71931619980.

The previous prime is 83920223293. The next prime is 83920223323. The reversal of 83920223317 is 71332202938.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83920223317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83920223317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83920223417) by changing a digit.

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, 5994301659 + ... + 5994301672.

It is an arithmetic number, because the mean of its divisors is an integer number (23977206664).

Almost surely, 2^83920223317 is an apocalyptic number.

It is an amenable number.

83920223317 is a deficient number, since it is larger than the sum of its proper divisors (11988603339).

83920223317 is a wasteful number, since it uses less digits than its factorization.

83920223317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988603338.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 83920223317 in words is "eighty-three billion, nine hundred twenty million, two hundred twenty-three thousand, three hundred seventeen".