385018503385 has 16 divisors (see below), whose sum is σ = 464485948416. Its totient is φ = 306374813568.

The previous prime is 385018503371. The next prime is 385018503407. The reversal of 385018503385 is 583305810583.

It is a cyclic number.

It is not a de Polignac number, because 385018503385 - 2²¹ = 385016406233 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 1077709 + ... + 1389781.

It is an arithmetic number, because the mean of its divisors is an integer number (29030371776).

Almost surely, 2^385018503385 is an apocalyptic number.

It is an amenable number.

385018503385 is a deficient number, since it is larger than the sum of its proper divisors (79467445031).

385018503385 is a wasteful number, since it uses less digits than its factorization.

385018503385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313392.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 385018503385 in words is "three hundred eighty-five billion, eighteen million, five hundred three thousand, three hundred eighty-five".