385616881344 has 56 divisors (see below), whose sum is σ = 1020400174080. Its totient is φ = 128523568384.

The previous prime is 385616881333. The next prime is 385616881369. The reversal of 385616881344 is 443188616583.

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 7 ways as a sum of consecutive naturals, for example, 1547377 + ... + 1779215.

It is an arithmetic number, because the mean of its divisors is an integer number (18221431680).

Almost surely, 2^385616881344 is an apocalyptic number.

It is an amenable number.

385616881344 is an abundant number, since it is smaller than the sum of its proper divisors (634783292736).

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

385616881344 is a wasteful number, since it uses less digits than its factorization.

385616881344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240517 (or 240507 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 57.

The spelling of 385616881344 in words is "three hundred eighty-five billion, six hundred sixteen million, eight hundred eighty-one thousand, three hundred forty-four".