685094742313 has 4 divisors (see below), whose sum is σ = 699671226240. Its totient is φ = 670518258388.

The previous prime is 685094742271. The next prime is 685094742337. The reversal of 685094742313 is 313247490586.

It is a happy number.

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 not a de Polignac number, because 685094742313 - 2²⁹ = 684557871401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685094742613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7288241893 + ... + 7288241986.

It is an arithmetic number, because the mean of its divisors is an integer number (174917806560).

It is a 1-persistent number, because it is pandigital, but 2⋅685094742313 = 1370189484626 is not.

Almost surely, 2^685094742313 is an apocalyptic number.

It is an amenable number.

685094742313 is a deficient number, since it is larger than the sum of its proper divisors (14576483927).

685094742313 is a wasteful number, since it uses less digits than its factorization.

685094742313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14576483926.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 685094742313 in words is "six hundred eighty-five billion, ninety-four million, seven hundred forty-two thousand, three hundred thirteen".