385841085811 has 16 divisors (see below), whose sum is σ = 418461357600. Its totient is φ = 354607089408.

The previous prime is 385841085797. The next prime is 385841085821. The reversal of 385841085811 is 118580148583.

It is a cyclic number.

It is not a de Polignac number, because 385841085811 - 2⁹ = 385841085299 is a prime.

It is a super-2 number, since 2×385841085811² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385841085821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2062956 + ... + 2242201.

It is an arithmetic number, because the mean of its divisors is an integer number (26153834850).

Almost surely, 2^385841085811 is an apocalyptic number.

385841085811 is a deficient number, since it is larger than the sum of its proper divisors (32620271789).

385841085811 is a wasteful number, since it uses less digits than its factorization.

385841085811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305318.

The product of its (nonzero) digits is 1228800, while the sum is 52.

The spelling of 385841085811 in words is "three hundred eighty-five billion, eight hundred forty-one million, eighty-five thousand, eight hundred eleven".