385809609646 has 8 divisors (see below), whose sum is σ = 578760211440. Its totient is φ = 192889539168.

The previous prime is 385809609637. The next prime is 385809609659. The reversal of 385809609646 is 646906908583.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7601211 + ... + 7651798.

It is an arithmetic number, because the mean of its divisors is an integer number (72345026430).

Almost surely, 2^385809609646 is an apocalyptic number.

385809609646 is a deficient number, since it is larger than the sum of its proper divisors (192950601794).

385809609646 is a wasteful number, since it uses less digits than its factorization.

385809609646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265658.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 385809609646 in words is "three hundred eighty-five billion, eight hundred nine million, six hundred nine thousand, six hundred forty-six".