685382689379 has 8 divisors (see below), whose sum is σ = 725773932000. Its totient is φ = 644999737216.

The previous prime is 685382689367. The next prime is 685382689391. The reversal of 685382689379 is 973986283586.

It is an interprime number because it is at equal distance from previous prime (685382689367) and next prime (685382689391).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685382689379 - 2³⁶ = 616663212643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685382689339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901999 + ... + 2233464.

It is an arithmetic number, because the mean of its divisors is an integer number (90721741500).

Almost surely, 2^685382689379 is an apocalyptic number.

685382689379 is a deficient number, since it is larger than the sum of its proper divisors (40391242621).

685382689379 is a wasteful number, since it uses less digits than its factorization.

685382689379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145229.

The product of its digits is 940584960, while the sum is 74.

The spelling of 685382689379 in words is "six hundred eighty-five billion, three hundred eighty-two million, six hundred eighty-nine thousand, three hundred seventy-nine".