785328836347813 has 8 divisors (see below), whose sum is σ = 797531182389632. Its totient is φ = 773140637956896.

The previous prime is 785328836347807. The next prime is 785328836347823. The reversal of 785328836347813 is 318743638823587.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-785328836347813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 785328836347813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785328836347823) 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, 3536800845 + ... + 3537022882.

It is an arithmetic number, because the mean of its divisors is an integer number (99691397798704).

Almost surely, 2^{785328836347813} is an apocalyptic number.

It is an amenable number.

785328836347813 is a deficient number, since it is larger than the sum of its proper divisors (12202346041819).

785328836347813 is a wasteful number, since it uses less digits than its factorization.

785328836347813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7073825451.

The product of its digits is 3901685760, while the sum is 76.

The spelling of 785328836347813 in words is "seven hundred eighty-five trillion, three hundred twenty-eight billion, eight hundred thirty-six million, three hundred forty-seven thousand, eight hundred thirteen".