385661412412 has 24 divisors (see below), whose sum is σ = 717264480240. Its totient is φ = 180813039360.

The previous prime is 385661412391. The next prime is 385661412481. The reversal of 385661412412 is 214214166583.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10523514 + ... + 10560097.

It is an arithmetic number, because the mean of its divisors is an integer number (29886020010).

Almost surely, 2^385661412412 is an apocalyptic number.

It is an amenable number.

385661412412 is a deficient number, since it is larger than the sum of its proper divisors (331603067828).

385661412412 is a wasteful number, since it uses less digits than its factorization.

385661412412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21083901 (or 21083899 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

Adding to 385661412412 its reverse (214214166583), we get a palindrome (599875578995).

The spelling of 385661412412 in words is "three hundred eighty-five billion, six hundred sixty-one million, four hundred twelve thousand, four hundred twelve".