385648844868 has 144 divisors (see below), whose sum is σ = 1124598034560. Its totient is φ = 109147917312.

The previous prime is 385648844851. The next prime is 385648844887. The reversal of 385648844868 is 868448846583.

385648844868 is a `hidden beast` number, since 3 + 8 + 5 + 64 + 8 + 84 + 486 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 385648844796 and 385648844805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76227723 + ... + 76232781.

Almost surely, 2^385648844868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385648844868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562299017280).

385648844868 is an abundant number, since it is smaller than the sum of its proper divisors (738949189692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385648844868 is a wasteful number, since it uses less digits than its factorization.

385648844868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866 (or 7861 counting only the distinct ones).

The product of its digits is 1132462080, while the sum is 72.

The spelling of 385648844868 in words is "three hundred eighty-five billion, six hundred forty-eight million, eight hundred forty-four thousand, eight hundred sixty-eight".