385856383550 has 24 divisors (see below), whose sum is σ = 782937681192. Its totient is φ = 140311412000.

The previous prime is 385856383531. The next prime is 385856383571. The reversal of 385856383550 is 55383658583.

It is a self number, because there is not a number n which added to its sum of digits gives 385856383550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350777981 + ... + 350779080.

It is an arithmetic number, because the mean of its divisors is an integer number (32622403383).

Almost surely, 2^385856383550 is an apocalyptic number.

385856383550 is an abundant number, since it is smaller than the sum of its proper divisors (397081297642).

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

385856383550 is a wasteful number, since it uses less digits than its factorization.

385856383550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701557084 (or 701557079 counting only the distinct ones).

The product of its (nonzero) digits is 51840000, while the sum is 59.

The spelling of 385856383550 in words is "three hundred eighty-five billion, eight hundred fifty-six million, three hundred eighty-three thousand, five hundred fifty".