385003885085 has 4 divisors (see below), whose sum is σ = 462004662108. Its totient is φ = 308003108064.

The previous prime is 385003885033. The next prime is 385003885099. The reversal of 385003885085 is 580588300583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269048652601 + 115955232484 = 518699^2 + 340522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385003885085 is a prime.

It is a Duffinian number.

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, 38500388504 + ... + 38500388513.

It is an arithmetic number, because the mean of its divisors is an integer number (115501165527).

Almost surely, 2^385003885085 is an apocalyptic number.

It is an amenable number.

385003885085 is a deficient number, since it is larger than the sum of its proper divisors (77000777023).

385003885085 is an equidigital number, since it uses as much as digits as its factorization.

385003885085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77000777022.

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 385003885085 in words is "three hundred eighty-five billion, three million, eight hundred eighty-five thousand, eighty-five".