682784571605 has 4 divisors (see below), whose sum is σ = 819341485932. Its totient is φ = 546227657280.

The previous prime is 682784571589. The next prime is 682784571613. The reversal of 682784571605 is 506175487286.

682784571605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 118792583569 + 563991988036 = 344663^2 + 750994^2 .

It is not a de Polignac number, because 682784571605 - 2⁴ = 682784571589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68278457156 + ... + 68278457165.

It is an arithmetic number, because the mean of its divisors is an integer number (204835371483).

Almost surely, 2^682784571605 is an apocalyptic number.

It is an amenable number.

682784571605 is a deficient number, since it is larger than the sum of its proper divisors (136556914327).

682784571605 is a wasteful number, since it uses less digits than its factorization.

682784571605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136556914326.

The product of its (nonzero) digits is 22579200, while the sum is 59.

The spelling of 682784571605 in words is "six hundred eighty-two billion, seven hundred eighty-four million, five hundred seventy-one thousand, six hundred five".