382820425717 has 4 divisors (see below), whose sum is σ = 382963431916. Its totient is φ = 382677419520.

The previous prime is 382820425703. The next prime is 382820425723. The reversal of 382820425717 is 717524028283.

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 16860762801 + 365959662916 = 129849^2 + 604946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382820425717 is a prime.

It is a super-2 number, since 2×382820425717² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382820425517) 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, 71499084 + ... + 71504437.

It is an arithmetic number, because the mean of its divisors is an integer number (95740857979).

Almost surely, 2^382820425717 is an apocalyptic number.

It is an amenable number.

382820425717 is a deficient number, since it is larger than the sum of its proper divisors (143006199).

382820425717 is a wasteful number, since it uses less digits than its factorization.

382820425717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143006198.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 382820425717 in words is "three hundred eighty-two billion, eight hundred twenty million, four hundred twenty-five thousand, seven hundred seventeen".