394709587325 has 12 divisors (see below), whose sum is σ = 506317126740. Its totient is φ = 304879128960.

The previous prime is 394709587319. The next prime is 394709587339. The reversal of 394709587325 is 523785907493.

It can be written as a sum of positive squares in 6 ways, for example, as 8589026329 + 386120560996 = 92677^2 + 621386^2 .

It is not a de Polignac number, because 394709587325 - 2¹⁰ = 394709586301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272212784 + ... + 272214233.

It is an arithmetic number, because the mean of its divisors is an integer number (42193093895).

Almost surely, 2^394709587325 is an apocalyptic number.

It is an amenable number.

394709587325 is a deficient number, since it is larger than the sum of its proper divisors (111607539415).

394709587325 is a wasteful number, since it uses less digits than its factorization.

394709587325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544427056 (or 544427051 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 62.

The spelling of 394709587325 in words is "three hundred ninety-four billion, seven hundred nine million, five hundred eighty-seven thousand, three hundred twenty-five".