385856475817 has 8 divisors (see below), whose sum is σ = 392516976512. Its totient is φ = 379206781200.

The previous prime is 385856475787. The next prime is 385856475827. The reversal of 385856475817 is 718574658583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385856475817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385856475827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629473 + ... + 2772334.

It is an arithmetic number, because the mean of its divisors is an integer number (49064622064).

Almost surely, 2^385856475817 is an apocalyptic number.

It is an amenable number.

385856475817 is a deficient number, since it is larger than the sum of its proper divisors (6660500695).

385856475817 is a wasteful number, since it uses less digits than its factorization.

385856475817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403039.

The product of its digits is 225792000, while the sum is 67.

The spelling of 385856475817 in words is "three hundred eighty-five billion, eight hundred fifty-six million, four hundred seventy-five thousand, eight hundred seventeen".