82068389573 has 4 divisors (see below), whose sum is σ = 85636580448. Its totient is φ = 78500198700.

The previous prime is 82068389539. The next prime is 82068389629. The reversal of 82068389573 is 37598386028.

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-82068389573 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 (82061389573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784095403 + ... + 1784095448.

It is an arithmetic number, because the mean of its divisors is an integer number (21409145112).

Almost surely, 2^82068389573 is an apocalyptic number.

It is an amenable number.

82068389573 is a deficient number, since it is larger than the sum of its proper divisors (3568190875).

82068389573 is a wasteful number, since it uses less digits than its factorization.

82068389573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568190874.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 82068389573 in words is "eighty-two billion, sixty-eight million, three hundred eighty-nine thousand, five hundred seventy-three".