395824705685 has 8 divisors (see below), whose sum is σ = 475088364600. Its totient is φ = 316593952704.

The previous prime is 395824705673. The next prime is 395824705697. The reversal of 395824705685 is 586507428593.

It is an interprime number because it is at equal distance from previous prime (395824705673) and next prime (395824705697).

It can be written as a sum of positive squares in 4 ways, for example, as 152145243364 + 243679462321 = 390058^2 + 493639^2 .

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 395824705685 - 2²⁰ = 395823657109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8200010 + ... + 8248139.

It is an arithmetic number, because the mean of its divisors is an integer number (59386045575).

Almost surely, 2^395824705685 is an apocalyptic number.

It is an amenable number.

395824705685 is a deficient number, since it is larger than the sum of its proper divisors (79263658915).

395824705685 is a wasteful number, since it uses less digits than its factorization.

395824705685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16452967.

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 395824705685 in words is "three hundred ninety-five billion, eight hundred twenty-four million, seven hundred five thousand, six hundred eighty-five".