385852855231 has 4 divisors (see below), whose sum is σ = 402629066352. Its totient is φ = 369076644112.

The previous prime is 385852855211. The next prime is 385852855237. The reversal of 385852855231 is 132558258583.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 385852855231 - 2⁹ = 385852854719 is a prime.

It is a super-2 number, since 2×385852855231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385852855237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8388105526 + ... + 8388105571.

It is an arithmetic number, because the mean of its divisors is an integer number (100657266588).

Almost surely, 2^385852855231 is an apocalyptic number.

385852855231 is a deficient number, since it is larger than the sum of its proper divisors (16776211121).

385852855231 is a wasteful number, since it uses less digits than its factorization.

385852855231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776211120.

The product of its digits is 11520000, while the sum is 55.

The spelling of 385852855231 in words is "three hundred eighty-five billion, eight hundred fifty-two million, eight hundred fifty-five thousand, two hundred thirty-one".