683589331745 has 4 divisors (see below), whose sum is σ = 820307198100. Its totient is φ = 546871465392.

The previous prime is 683589331721. The next prime is 683589331759. The reversal of 683589331745 is 547133985386.

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 478231720849 + 205357610896 = 691543^2 + 453164^2 .

It is a cyclic number.

It is not a de Polignac number, because 683589331745 - 2¹⁸ = 683589069601 is a prime.

It is an unprimeable number.

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, 68358933170 + ... + 68358933179.

It is an arithmetic number, because the mean of its divisors is an integer number (205076799525).

Almost surely, 2^683589331745 is an apocalyptic number.

It is an amenable number.

683589331745 is a deficient number, since it is larger than the sum of its proper divisors (136717866355).

683589331745 is a wasteful number, since it uses less digits than its factorization.

683589331745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136717866354.

The product of its digits is 65318400, while the sum is 62.

The spelling of 683589331745 in words is "six hundred eighty-three billion, five hundred eighty-nine million, three hundred thirty-one thousand, seven hundred forty-five".